I am a 42 year old male who has been in good health with the exception of my often crippling health anxiety. I do take medication for it however I am wondering if it is losing effectiveness. I am wondering if my current situation and symptoms are more indicative of stress anxiety than something more sinister.

Two weeks ago I started fixating on a change in the taste in my mouth. It was sort of a sour sensation but not really burning. Some days was intermittent and some it was persistent. Last Tuesday it progressed to upper abdominal pain that increased if I pressed into my abdomen just below the sternum. This caused me to panic and go to the ER. There they did a contrast CT scan and blood work to rule out more serious issues and the only explanation the doctor was left with was gastritis and I was sent home with medicine. 

A few days later I started getting sharp pain in my upper back where my shouldblade is and i couldn’t tell if it was actually my back or referees pain from my stomach so I panicked and had a terrible anxiety attack with chest pain and once again went to the ER. More tests were done and no serious health issues and heart was fine. Doctor said GERD was possible. After sleeping that night back pain and stomach pain stopped for the most part. 

Now the last two nights I have been getting that nagging sharp pain in the back and last night my stomach cramped up and was painful for 6-7 hours. I didn’t sleep and was tempted to go to the ER yet again but did not. My question is could all these things I am experiencing be cause by stress and anxiety? It’s all I’ve obsessed about since it started so I know I am anxious but my mind races to cancer ect. In the past I used to have muscle twitches to the point I had MS but tests ruled that out and a few weeks later twitching stopped so I know what the mind can do. Not sure the mind can cause my stomach to be in agony for hours and hours though? Also no nausea or diarrhea. Appreciate any input!