Hi Jacustomer, My name is ***** ***** I’ve been involved professionally with dogs in the health and behavioral fields for over 18 years. It will be my pleasure to work with you today. Shaking or trembling in toy breeds acan be due to hypoglycemia
, liver shunt, or a neurologic response such as a seizure. Trembling can also be a sign of pain, stress and cold. Hypoglycemia is low blood sugar and frequently causing trembling in small breeds. Feeding
your dog smaller meals more frequently can help. If you suspect your dog is having low blood sugar you can put a drop of pancake syrup on your dog's tongue which should raise the level. http://www.petplace.com/dogs/hypoglycemia-in-dogs/page1.aspx A liver shunt is usually a genetic condition. It is a condition where instead of the blood going through the liver and being cleansed, part of the blood is diverted around the liver resulting in a toxic
buildup in the blood. You can read about these here: http://www.malteseonly.com/shunt2.html Seizures
can manifest as trembling and a dog may not lose conscienceness. You can read more about seizures here: http://www.marvistavet.com/html/body_seizure_disorder.html However, like I mentioned, it can also happen due to pain and stress as well. Often inner ear
infections can lead to vestibular diseasee which causes falling over, abnormal eye
movement, nausea in some cases to name a few symptoms. Clearing the ear infection restores balance and relieves symptoms. If your dog had eaton within the last 6 hours, then I wouldn't suspect low blood sugar but it wouldn't rule out pain or disorientation as the result of organ dysfunction. If he was my dog, I'd get him into the vet if giving him some syrup doesn't correct the situation. I hope this information is helpful to you. If you would like any additional information or have more questions please don’t hesitate to press the reply to expert or continue conversation button so I can address any issues you still have . If you do find this helpful, please take this opportunity to rate my answer positively so I am compensated for my time.