I also used to drink lots of soda when younger and
had a lot of caffeine, usually tea and
coffee. I am not obese, do not smoke and
hardly ever drink alcohol. I have cut down on a lot of this bad stuff lately.
During this vomiting phase when I was hospitalized, I strained so hard at one point that I ended up with upper chest pain for about a day. It was not bad enough to think a broken rib, so I thought it was just strain. I ate light foods in the hospital, since I tend to hate hospital food.