Well acid reflux seems to be a common digestive system problem to middle aged adults! Basically acid reflux is when your stomach acid actually comes up your throat. It can give you heart burn or cause irritation to your throat - it definitely isn't a fun experience for anyone. Luckily, there are pills and diets to kind've settle the irritation feeling - many people take it before eating, or some after when it starts to irritate them.
While for teenagers - that's when IBS begins to start. (it's just irritable bowl syndrome) but IBS in a broken down describtive definition is a whole combination of gas, diarrhea, constipation, and a whole lot of bloating!
I hope all is well, and I'd helped! if you need anything else - let me know! (: Good luck, rockstar! (:
