While I don't have experience with this if you do not believe your Vet is giving you the correct answer you can always go to another Vet. I think we may have a couple people floating around that are Vets, but I don't think they come on all to often or if they do I'm not sure where they would go here.

I don't think the case you are dealing with is a common enough one that a lot of people will be able to honestly respond without it being a third party, he/she said, response.