I have an 04 black pine male that has out of blue begun turning its head upside down and at odd angles in a way that suggests possibly some kind of nervous system problem. He has always been a gentle animal verging on lifeless, but a good feeder. Bodyweight is steady but muscle tone seems to be dropping. I thought I read some time ago that somebody had a snake with similar symptoms so wanted to see if anyone had experience/insight.

Thanks for any help.

Bryan