alright i'm 13(1 month from 14) and i weigh about 127lbs. is this healthy?i'm also about 5 foot 9. i run on one of those little trampoline things(think it's called a rebounder?) and do situps and all that 4 days a week.i wear a 7 (very comfortably)in pants and a B in bra size(haha shirt sizes are different so idk what else to out) i eat a pb&j sandwich for lunch with some powerade and occasionally some sunchips, and the eat whatever my dad makes for dinner. then i drink some 2% milk after dinner...am i healthy?