For three weeks, I've had horrible pain that grips my neck and upper chest and even radiates to my mouth and ears, today it felt just like a heart attack. It's horrible for 5 to 10 minutes and then settles down. Docs say it not my heart,or my lungs, the next doc will be an upper gi doc. It gets worse from walking, cold air and laying down, What is your take on this. I did have to go off my prilosec suddenly and replaced with zantac but I'm back on prilosec about two weeks now and I have increased now. What could this be??? Thank you if any members have had this please answer too. aheart