Im 16, female, 5'3, 115 ibls, and a runner.
It started 4 months ago only when I ran I had cramping terrible pain in my stomach, now it happens when I'm just relaxing. I am extra tried now, I pee frequently

I am female, 5'3, 115ibles, run cross counrtry, eat extremely healthy, very fit. 4 months ago I started having cramping pain in my abdomanal area and now it's my hole stomach only when I would move or run... Now it's all the time. Ever scenee this started I am more tired than usual and I pee frequently(I only drink water). My stools are eatherr really hard, or like watery diahreah or very soft and falls apart. What do u think is going on?