Severe frontal lobe headaches that occur upon waking in the AM. ...

I also take Prilosec OTC daily, along with alot of pain meds for Chronic Pain Syndrome....The headaches usually start upon waking & last at least 6-8 hours!! I am motionless during these excruciating headaches and I almost always end it by "losin' my lunch"! After that, I'll sip a little Coca Cola and carry the cool, wet cloth around to lay on my head again for just a bit until the pain eases enough for me to actually sit in my recliner and enjoy a sit-com! I wasn't sure if it was the Morphine I take or Fentanyl, but I'm sure glad to know now that it can very well be caused by Prilosec!!