I eat like a normal person but im still skinny.. i want to gain some weight.. i also hav astama problem so i can't eat heavy food.. what should i do?

Workup: Your physician may think it's worthwhile to check you for malabsorption / maldigestion (celiac disease, mild cystic fibrosis -- the latter's a thought with your asthma symptoms) if you truly can't gain weight eating. Or you may be light-framed but still able to muscle up -- here's brad pitt at your age, slim, fit and no body fat. Let your physician guide you, and good luck.