Experienced and professional animal trainer provide their insights in answering this question :
A. What you described may have been some type of seizure. A visit to your vet for an exam and diagnostics is recommended, especially if it happens repeatedly.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

If your dog is staggering, stumbling, or falling over, it may be the result of a variety of medical issues, including injury, stroke, poisoning, or an infection.
Paralysis in dogs is usually caused by a problem in the spine or brain. Spinal compression, herniated discs, and nerve problems can all disrupt the communication between a dog`s spine and brain. When the nerves are unable to function normally, dogs will lose the ability to walk, stand, and control their legs.
Dogs shake and tremble for all kinds of reasons — excitement, pain, old age, even nausea. Shivering and trembling may be symptoms of something serious — like poisoning, kidney disease, or injury.
Seizures, circling, falling, difficulty walking and behavioral changes can all indicate that your pup had a stroke. Your furry friend can have a stroke without you noticing it, as some signs are mild and unrecognizable to a pet parent. “The only way to diagnose a stroke is with an MRI of the brain,” Dr.
Some signs of a stroke in dogs include a head tilt, circling, loss of balance, and unusual eye movements. If you think that your dog is having a stroke, don`t delay getting them to the vet for diagnosis and treatment. Treatment is mostly supportive, and it`s important to treat any underlying causes.
Symptoms can include collapsing, jerking, stiffening, muscle twitching, loss of consciousness, drooling, chomping, tongue chewing, or foaming at the mouth. Dogs can fall to the side and make paddling motions with their legs. They sometimes poop or pee during the seizure. They are also not aware of their surroundings.
Causes of Muscle Spasms in Dogs

Muscle spasms can be caused by a variety of conditions, including muscle strains or injuries, neurological disorders, allergies, dehydration, or an adverse response to medication.

Is your dog losing balance, shaking, or falling over? Your dog`s loss of balance could be the result of a serious medical issue, such as poisoning, stroke, injury, or an infection. Today, our Winston-Salem vets explain why you should head to an animal hospital right away if your dog is experiencing balance issues.
A spinal stroke results in a rapid onset of clinical signs—usually weakness or paralysis in one or both hind legs, although front legs also can be affected. Depending on where the FCE occurs, one side of the body may be affected more than the other.
Common Signs of Dog Poisoning

The following may be signs of dog poisoning: Diarrhea or blood in the stool (either bright red blood or dark black tarry stools) Vomiting or loss of appetite. Seizures or tremors.

The clinical signs of more advanced kidney failure include loss of appetite, lethargy, vomiting, diarrhea, and very bad breath. Occasionally, ulcers will be found in the mouth.
Ictal phase of seizures in dogs

During the ictal phase which follows, your dog may seem dazed and disoriented. Your pet`s pupils may be dilated. In severe cases, your dog may experience a grand mal seizure, identified by loss of consciousness and collapse.

A Spinal Stroke or Fibrocartilaginous embolism occurs when a piece of the vertebral disc breaks off and impedes blood flow to neurons in the spinal cord. When the blood flow to neurons in the spinal cord get cut off, the neurons die resulting in leg paralysis.
Common signs that your dog might be having a stroke include: Loss of balance. Head tilt. Pacing, circling, or turning the wrong way when called.
In the brain, strokes may cause sudden loss of balance, blindness, or seizures. In the spinal cord, strokes can cause sudden weakness or paralysis of one or more limbs.” Other nervous system diseases can cause these signs as well, but are typically more generalized, take longer to progress, and worsen over time.
The pre-ictal phase (aura) is a period of altered behavior in which a dog may hide, appear nervous, or seek out her owner. She may be restless, nervous, whining, shaking, or salivating. This may last a few seconds to a few hours.
If your pet is having a seizure they may: Become unsteady and have trouble walking or balancing. Chomp or make biting motions. Collapse, fall to the side, or stiffen.
Toxins. There are many different toxins that are important causes of seizures in dogs. These include, but are not limited to lead, chocolate, xylitol, ethylene glycol, rodenticides, strychnine, and organophosphates.
Sudden onset of collapse can be secondary to a variety of disorders including spinal cord injury, orthopedic disease, or systemic illness. This sudden hind-leg weakness may be a sign of a disease that requires prompt attention from your regular veterinarian. Or even a trip to the emergency room.
Botulism is a rare condition that causes paralysis in dogs. Botulism is caused by ingesting the botulinum toxin, a substance produced by the bacteria Clostridium botulinum. Most cases of botulism in dogs are caused by eating dead animals or contaminated raw meat.
Your dog may be completely immobile or may only have some of their legs paralyzed. It may be temporary paralysis or permanent.
This can happen due to mobility-reducing health conditions, surgery recovery, or lack of use in aging. Arthritis in your dog`s back legs may cause the muscle in your dog`s legs to atrophy. Not so coincidentally, arthritis is another condition that could cause your dog`s legs to become shaky and weak.
Dogs may shake-off after an exciting or stressful interaction with another dog or a human. They may have been uncomfortable or cautious, but were on their best behavior. The shake-off is a way of releasing both tense muscles and tense emotions. You may see a dog shake-off after energetic play with other dogs.
In the case of a stroke, your pet`s brain sends incorrect signals to their body. For example, your pet may not be able to respond to your spoken directions. Instead, he may move in a directionless fashion and seem to be walking in circles. He may appear as though he is drunk and be unable to walk in a straight line.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Weak, discharge from eyes, swelling on right eye, does not want to open eyes. What is wrong?
ANSWER : A. If the discharge from the eye is green or yellow in color, it can indicate a secondary infection. Swollen eyes can be caused by a number of things ranging from allergies to infections, to injury to the eye itself or surrounding areas.

It is best to have your pet’s eye examined by your local vet. They will most likely wish to place a stain in the eye that can check for damage such as cuts or scratches. An ointment can then be given to help reduce inflammation, pain and take care of infection.

Until you can get to the vet, be sure to not let your pet scratch or paw at their eye as this can make things worse. You can also use a warm wet washcloth to gently remove any debris and allow the eye to open some, providing relief. However, if symptoms worsen, or the swelling travels to the face, head or neck, it may indicate a serious allergic reaction which should be treated immediately.

Q. I was told by my vet that my dogs cherry eye was caused by something hitting his eye when he was poking around under a bush. I was told surgery needed
ANSWER : A. Prolapsed gland of the eyelid refers to a pink mass protruding from the animal’s eyelid; it is also called a “cherry eye.” Normally, the gland is anchored by an attachment made up of fibrous material. The most common sign of “cherry eye” is an oval mass protruding from the dogs’s third eyelid. It can occur in one or both eyes, and may be accompanied by swelling and irritation. He may have acquired it by getting an injury to his eye but this isn’t the case sometimes. Sometimes there is a weakness in the fibrous attachment.

The veterinarian will review the mass in the dog’s third eyelid and determine if there is an underlying cause for the condition. The diagnosis of the prolapsed gland could be scrolled or everted cartilage in the third eyelid, abnormal cells in the third eye, or a prolapse of fat in the dog’s eye.

Treatment often includes surgical replacement of the gland in the dog’s eye, or removal of the entire gland if the condition is severe. Conversely, if medications are recommended, they are typically topical anti-inflammatory drugs that are effective in reducing swelling.

Q. My pet is suffering eyes discharge, what should I do?
ANSWER : A. Mucus, yellow-green pus, or a watery eye discharge can all be signs of conjunctivitis, which is inflammation of the lining of your dog’s eye.

There is a wide range of causes for conjunctivitis, from allergies, injury, birth defects, and tear duct problems, to foreign bodies, dry eye syndrome, infections or even tumors.

Other signs of conjunctivitis include excessive blinking or keeping the eye closed, squinting and pawing at the eyes.

Treatment of this condition depends on the underlying cause. In most of the cases cleaning, soothing the eye and applying antibiotics eye drops suffice but is some instances further investigation is required to establish the cause of the excessive eye discharge, and this should be performed by a veterinarian.

Q. One eye is more red than the other. Last night he was pawing at it,today, he isn’t. Should I bring him to the vet?
ANSWER : A. Sounds possible that he had some irritation to the eye that is at least not itchy anymore. You can do either, having it checked now to confirm mild irritation, potentially due to debris or a topical irritant to the eye; or you can flush the eye with sterile saline eye wash (over the counter) using care not to poke or prod the eye and see if the irritation goes away on its own within the next 24 hrs. It has shown improvement already it appears, however if it is not cleared up and your pet seems irritated by it AT ALL, then it should be looked at by a vet and tested for a possible corneal scratch or ulcer. These can cause redness of the eye, eye discharge and pawing at the face. They are usually treated by prescription only topical eye antibiotic ointment and generally do very well after treatment.

Read Full Q/A … : Eye Problems in Cats

Q. What can be given to dogs to stop the brown draining around dogs eyes? I was told tetracycline would work.
Thanks
ANSWER : A. Eye leakage is normal in some breeds of dogs, especially those that are more “bug-eyed” types. This eye leakage is just normal tears coming from the eye which can stain lighter colored coats. Unless there is an infection it does not need to be treated with antibiotics. Signs of infection usually include drainage that is thick or goopy and is yellow or greenish in color. Dogs with infections may also want to keep the eye closed, or may paw and scratch at it.

For plain tear-staining. Tear-stain wipes can be used around the eyes to remove the stain and bring the coat back to natural color. If infection is suspected, it is best to have your vet take a look at the eye prior to placing any medications in it.

Q. My dog got into a fight with a cat. I think the cat scratch her eye. I clean it out with water. I have gentak can I put that in there?
ANSWER : A. It is best NOT to place anything in the eye unless specifically instructed to do so by your vet as it can cause more damage to the eye. As cat scratches and bites can easily become infected and the eye is a very sensitive area, it is best to schedule a veterinary appointment as soon as possible to have the eye examined. Your vet can place a fluorescent stain in the eye to check the extent of the damage and can then give you a pet-safe medication to place in it as needed to help it heal. Until you can get to the vet, it is best to keep the eye clean of debris and discharge with a warm wet washcloth, and to prevent your dog from scratching or clawing at the eye with the use of an Elizabethan (cone) collar.

Q. My cat has entropion of the eyes. Vet did surgery on both eyes, the right eye seems ok but the left eye is still running/mucus. Can I use Neosporin?
ANSWER : A. Do NOT use Neosporin on cats or dogs as this product can be toxic to pets if ingested. If the eye is still leaking or has green or yellow discharge it is best to contact your veterinarian. Green or yellow discharge can indicate that a secondary infection has formed and may require antibiotics or cat-safe ointments to help clear it up. In the meantime, you can use a warm wet washcloth to remove any excess debris from the eye very gently, allowing the eye to open and help with healing.

Q. Pit Bull. He has green puss or eyeboogers in his eyes and you can’t even see his eyes and the whites of his eyes are red. Little scabs around his Eyes
ANSWER : A. It sounds like a nasty eye infection. You can try cleaning with cool boiled water on a cotton pad. If it continues then you need to see your vet for appropriate treatment. It is not wise to leave eye problems without veterinary treatment for too long as some conditions can cause irreversible damage.