Hi,
I also supposely have gastritis and have been suffereing from it since August. It makes me feel horrible and nothing seems to help. I have read that dramatic stress can cause gastritis. By dramatic stress their referring to surgery, severe burns, and severe illnesses. So I think it could be very likely. I got an ulrasound done on my gallbladder and everything showed up ok so the doctors still think I just have gastritis but Im always feeling sick, even after treatments and I have no idea what could of caused me to get gastritis or why its not getting better. I hope you get to feeling better. If you want you can contact me on here. Goodluck!