helicobacter pylori infection
"I've had the h.pylori infection for at least a few years but this year it got to a point where I couldn't handle it.  I had severe gastritis and couldn't eat anymore.  Some days the food I ate over the course of a day wouldn't even add up to one meal.  The treatment was not pleasant, but tolerable.  It's a lot of pills to take in one day and I felt exhausted some of the days.  A few weeks after I finished the treatment, I noticed that I no longer have immediate pain and nausea when I try to eat.  Now (4 months later) I can almost eat a full meal and feel ok.  It took a while to recover but it was very much worth it."