I am so sorry about your loss. I can't even imagine. I do think though that if vets don't have a certain responce for things or don't know whats going on they should refer paintients elsewhere instead of giving maybes. I hate when I go and they tell me "well you know know it maybe that" i don't settle for this and it irritates me. I am sorry. I wish I had an answer for what when wrong but I don't. I am with you. 
