I'm 20 years old and is very underweight. My weight is 37 kg only. Recently I'm taking kemalactin syrup and in the starting days it increased my appetite but now after taking syrup also I can't feel hunger and my diet is also decreased so much. Help me gaining weight as for last 2 years I'm trying to eat more calories intake but it is not working. I've a full body check-up last year and i'm perfectly normal.