Possibly, it is one of two things. First, it may be that you snake has a "wobble", which is a neurological condition that appears in some spiders, and can range from leaning their head to the side up to full corck-screwing of their head. Apparently, stress causes it to get worse at times and also some members have said that as their snakes got older, the "wobbles" were reduced or went away entirely.
The second possible cause is over heating caused by your temps being too high. What are your Temps? And how are you heating the tank? And are you using a controlling device?...


Rob