[ladyjane]

It's a rare yorkie that has not been sedated by age 10. Also very rare for them not to have had a need for dentals. I don't know what that vet meant by his teeth not being bad for a 10 year old....
Did the other vet say anything about his teeth?
Of course if he is ill a dental would be out right now.
I think waiting for the blood test results now is all you can do...they may give a clue as to what is going on with him.
Dex is a steroid....that should help to increase his appetite. Do you know why it was given? And did the second vet say why something for pain? Where is he eliciting pain from during the exam?
I would call the vet tomorrow and see if the blood work is in. Then make a decision about what to do.
Btw: dogs have to be sedated sometimes! Yes, it is a risk, but a small one. Always be sure to do blood work prior to any anesthesia and make sure your vet is following very strict protocols for sedating dogs.