Dude you probably didnt stunt your height. You dont have crohns disease, hgh deficiency, or malnutrition. This is just how tall you were supposed to be. The only way you can actually prove that you stunted your growth is if you have a older brother thats ALOT taller than you or if you're very much shorter than your parents. Something tragic has to happen for you to stunt your growth by 3 or more inches. I have crohns disease and let me tell you the human body is very resilient when it comes to catching up on growth when you fall behind. So there's no way you stunted your growth unless you started puberty very early before age 12 or you somehow took meds that could've stunted your growth. How old are you? I grew 2-3 whole inches from 19-21. I was 5'4, now i'm 5'7 5'8 ish. I grew those two inches after not growing for like a whole 3 years. Currently trying to get on HGH after i got blood tested and saw where my igf1 levels were at. You should get tested and see where your igf1 levels are at. My levels are at 200, which is normal but not the optimal level to jumpstart as much growth as you can, if i get it in the 300 range im pretty sure i can shoot up another 2-4 inches because my big brother is 5'8 5'10 ish, so the potential is there to get taller. Go see a doctor man if you're still in your early 20s, that way you can start LL at like 5'8 or something which makes a big difference.