it very well could be a number of things such as nerve damage in your neck migraine or even vertigo. best thing to do is to talk to your doctor right away and see what could initially be causing this pain.
every time i wake up or lay down i get severe headaches on the back of my head and severe nausea. help? . recently started waking up with excrutiating headaches in the back of the head. vomiting and nausea does occur. it is almost every time i sleep or lay down. i am borderline diabetic with poly cystic ovarian syndrome. this pain is almost debilitating i am only 23 yr a bit over weight but other than that healthy.