[hollywillis]

I just wanted to get some advice before Willis goes off to the vet, He has started having jerking movements, it is affecting his head front legs and shoulders, I was wondering if this could be liver shunt??? or maybe he is hypoglycemic, He has always been a very fussy eater, going off new food very quickly, and when he refuses to eat he brings up yellow bile, However the last few weeks his appetite is pretty good which is unusual for him.
Before he had his breakfast today he was a little dissorientated, which improved after he ate his breakfast, but the jerking hasn't gone away.
He is 7,
Please can anyone give me some advice???????