I got 2 centimeters shorter?!?!?

Just to be sure that you really lost 2 cm, take your height once in the morning (when you wake up) and once in the evening. Take the average of those two. If you really lost 2 cm, I'm really surprised. I knew that weight training could stop your growth, but make you smaller? Anyways, the exercises that maybe made you shorter are probably exercises where you put heavy weights on yourself while you are standing up, such as dead-lifts with heavy weights, or squats with heavy weights too. As of to gain height, get taller, it might work if you sleep a lot, drink milk and what helped me is to stretch your back a couple times per day.

Well.. you can't just decrease in height. Were you wearing different shoes? In the morning you're about an inch taller than you are at night.. anyway unless there's something seriously wrong you can't have actually shrunk

Haha dude chill! It was probably just a slight mismeasure. It is NOT physicly possible to "shrink" or "get smaller"! Maybe your posture has just gotten off, and you were slouching, or maybe it was a simple human mistake :) I WOULD NOT stress about it. You wont get shorter and your arent getting shorter! Hope I helped...

If you are doing any sort of squats, that will do it sometimes. They put so much weight on your legs that if you start doing too many, your legs will compress together and therefore sort of shrink

you probably didnt get shorter you probably stood different or wore different shoes or socks and 2cm big deal