amway thing are crap
I think ur thinking of ur height is not enough because,you have not got any real life tensions.ppl are not free to think about all these unless they are kids or someone who dont have any tension or stress
still,dont get those ayurved height increase pills etc that sucks.
only few millimeters is what the so called "height" growth upto 25 yrs means.
ur option imo,is either be satisfied with ur height.else go for the other 2 options(GHT or homeo )
Best of Luck