[gemy]

After all this testing and 4 general vet consults (I am assuming the 4 vets were general vets and not specialists) did they not suggest a specialist consult?

For me that is where I would want to go next. Either a dermatologist and or an internal medicine specialist. Ideally if you have a teaching hospital nearby or a fully staffed Veterinary Hospital that is where I want a consult from.
If distance is a factor many specialists will do phone consults with your vet, and your vet can fax email test results etc to the specialist.

Some thoughts and notes you might want to make, has there been a change in appetite, water drinking, bowel movement etc. When he becomes shakey or jittery is there a certain event that precedes the shakiness or time of day etc.

Steroids can increase appetite and thirst - so it could be the bloating was a result of the steroids.

Leather ear if he has this does not usually induce shakiness etc. But inner ear infections can.

Now onto blood work, was a Bile Acid Test ever done? This is a test specific to liver function, and if his liver values were high even before he got this ear infection, I would have liked to see a BATs done.

I can see you are quite worried about your boy, and sure hope with some help your boy gets on the road to health.

Let us know how you both are doing.