Sorry I can't help you on the health issue. I would sure find out where your old vet went and give him a call. Finding another vet is trial and error. I read allot of ads in the phone book luckly found a wonderful vet that solved Skinny's problems. I switched everyone over to him.
Ask co-workers and friends thats the ideal way to find a good vet. Call your local human society see if they have a "recommended list".
Good luck.. Give rubs and kisses to Joey