u fab too much?
how many times u fab when ur schooling time...

i'm 170 and i used to be 48-50kg also...and i tot no matter how also i wont gain weight...
then i started playing badminton around 1 year back...recently i chk i have become 62kg

because everytime after game sure eat supper...so now i have better stamina,more muscle and also more weight

u should go try and play sumthing...see wat suit u