Will Falconer, DVM Moderator
Laura, while I'm so sorry you're having to deal with Teddy being so sick (arghh! in the name of prevention!), I'd strongly urge you to stop spending money on tests. You'd be wiser to spend now on cure, and that's best accomplished by hiring a homeopathic vet. In the UK, my favorite is Sue Armstrong MRCVS. Odds are that, even if she's not geographically near you, she can help you via phone appointments.
p.s. I saw on your crowd funding page a mention of " homeopathic detox " and I'm talking about something much deeper. With professional help, you'll go much farther and faster to cure the whole of Teddy than any arm chair prescribing from someone who lacks training.
All the best and please keep us posted.