 [ Symptoms ] 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 [ Disease ] the samething happens to me it could be gerd as far as nausea but i still havent figured out why the headaches