Weight problems

I never been an overweight I guess. I’m a tall person and every time I weigh myself, it’s always short, I mean not appropriate for my height. Right now, I’m trying to gain weight because I notice I lose some when I had my thesis documentation. I don’t mind gaining at least a little weight as well. It’s just that, it’s true that you get to tire easily when you gain weight. I used to walk few blocks going to my school and when I reach my classroom, I had to face on the air-conditioner because I can’t breathe properly. Hehe..