For about the past four days, i've had the feeling of not being able to take a deep breath. This has been accompanied by an ongoing dull stomachache for about the past week and a half. Everywhere I look, people seem to point to stress but I dont think its stress. Im 16 yo, lead a good life, swim almost everyday, am very active, get good grades, have good friends, etc. About two months ago, I had the same breathing difficulties and about one week later I had an appendicitis. It has not come back (until last week) since I had surgery for my appendicitis. I'm just wondering if anybody knows anything about this? I will probably be seeing a doctor this week, but i'm just trying to get to the bottom of this in the most efficient way.