dont tell me u didnt do any leg and back workout. as i know, u only do body part that can be seen in mirror, that is bicep, tricep, chest and abs..

when in front of mirror, i always wear only underwear. by that i know which part of my body is lagging and not symmetry to the rest of my body. also dont forget to see side view. make sure ur posture is good and straight.

for back, try rowing using barbell if u could find or anything equalavent. at least u could row heavy and really feel pull using your back. but pull/chin up is already good back exercise. maybe its time u put some weight to pull with u.

big muscle like back and leg do trigger growth hormone..

if posed nude in front of mirror.. then u got new problem.. you will see ur toot not proportion to the rest of your body.. althougt its already big.. hhuhuhu..