I have a question about Puberty...?!

I have a question about Puberty...?

im 16, im about 5'5 145, i have no armpit hair, no facial, some down below, and not very much on legs and arms, is it normal that im going through this late???

yep; each guy starts puberty at a different time and progresses through it at a different rate. In fact even the order of the changes can vary thus one guy's penis may increase size first then pubic hair follows while th enext guy might be a bit hairy befor ehis penis grows. Basically puberty is just a pretty screwed up event and confuses, embarasses and generally messes up every guy as he goes through it.

Moral of the story: relax, enjoy all the changes as they occur and know that one day it will all draw to it's normal conclusion. Just don't let anything embarass you or make you worry.