I have no crystal ball, of course...that's just one of many possibilities.
That medical series was all true stories reenacted, btw- some of the weirdest things ever, called "Monsters Inside Me", mostly about parasites & infectious diseases, a documentary cross between medical mysteries & horror. Weird stuff really happens, our local hospital has a collection on display near the emergency room of all the weird things they've removed from people...No wonder doctors develop a macabre sense of humor?
I hope the vet can figure it out & be able to help in time. Snakes are so stoic, we may not get much warning about how sick they are.