In last question,i said i eat 1 meal aday.i actually don't starve myself, but for 5 years i rarely feel hungry.still, i gain weight.i'm overweight now?

Calories in/out: cannot say in your particular case, but generally, when people say their meal intake is small, their total calories in turn out to be HUGE. 1) snacking 100 calories 50 times a day 2) one meal but 5 liters of cola and 10 shots of alcohol (not making these up). 1) count calories. Really. Alternatively can be low thyroid, really low metabolic rate (rare).