Check out IBS, than go to your Dr. Am 75 have dealt with this since before as 13. Have had exploratory surgery at age 2-. Seen but various specialist. Pains got worst in1999 and life very restricted now. As I said check it out to rule out anything serious. Blessing.
I agree, you need to speak to your parents about your health. Have you tried eating something other than shredded wheat for breakfast? This is high fiber which can cause your stomach to hurt. I don't think it's serious, but you need to see a doctor. As for the liquor, the pain you experienced is minor compared to what drinking can lead to. Not lecturing, but really, drinking isn't cool. The cool kid will lead and not follow, it shows your true strength! Talk to your parents about the pain.
not sure what it could b. i think ur best bet would b to let ur parents know about ur pains. im sure getting a check up would answer ur concerns. it could b gas . do u have a bowel movement daily? that could also b the reason if u dont use the restroom . hope this helps some.