Sometimes vets will throw everything at the wall to see what sticks. Seems like they'll mention everything that a snake MIGHT have at any point in it's life, before they figure out what's actually wrong.
I once had a vet ask me if seahorses were actually real, then five minutes later tell me i had to bring the sick seahorse in so she could examine it before she would give me meds for it. I asked her what exactly she would be able to tell me since she not only didn't know seahorse specific issues, but didn't even know they actually EXISTED ten minutes ago.
What was the vets response? I had a similar issue. I was told I could bring in my chameleon. Once in the examining room, that's when they asked me what a chameleon was.