Suggest Remedy For Dark Spots On Face

hi im 18yrs old, 5 ft 4 and weigh 7 stones. i got spots on my face and i have been eating fruits and vegtables, and eating healthy food what else could i eat to make sure my skin is clean and clear?and that it stays that way. Also what could i eat to make myself grow taller. also i keep getting headaches and back pains.