Very sorry to hear that...did you bring him up slowly? I have never heard of this problem but I guess that it would be possible.
:I just found one of my snakes (Pyromelana pyromelana dead. :I just took him out of 5 month of hibernation 3 days ago)and today i found him dead after vomiting allot of blood from his mouth. :My vet. think it's because of strees that blow up one of the stomack blood vesel. :Is it common? is it posibel? :What do u think?
:P.s-sorry about my English it's not my mother tongu