Mask straps hurt the back of my head - will a head cap work?

Have either of you two last posters seen anyone but a chiropractor? Such as a medical doctor, pref. a neurologist, neurosurgeon or orthopedic MD? Those are the ones who will do MRIs to see if you have cervical vertebrae or disc problems, not chiropractors. You may well have potentially serious problems, but can't do much about them the way you're going. Btw, last poster - you're replying to a 2013 note from a nonmember who's never returned to the forum far as I know...