[yorkiepup2]

JennS,
You'd better get your pup to the vet asap. That sounds just like a liver shunt. My little Maya was shaking and spacing out....walking in circles....walking the perimeter of the living room. It turned out that she had a liver shunt. One surgery and thousands of dollars later, she is a robust furbaby. She was very tiny...the breeder told me she would only be 3 or 4 lbs. She is now about 6.5. There are 2 kinds of liver shunts; internal and external hepatic. I can't remember off hand which is worse for treating surgically. I hope to God it's not a liver shunt....but get your baby in to see the vet to get a bile acid test before she shows signs of a seizure.
My thoughts and prayers are with you!