whenever i felt that i've overeaten and it is time for a detox, i'd start counting my calories ( not like i do not count it everyday ) haha.. so at least if i've gained weight, i know its cos i overeat? i hate it when i gain weight and do not know why!! anyway, for a girl, its best to have 1800 calories a day ( for a girl with normal activitity ). if you wanna lose weight, …