I don't know why but I have noticed I am loosing so much weight and very rapidly. I have all my 3 meals and I drink loads of fruit juice and fizzy drinks. But I began at 7 1/2 stone post pregnancy and have lost about a stone and a half in 4 months.. I know some people will say this is good, but I'm only 17 and at 5''2. I just eat my meal, become full up and munch through the day. I'm a little worried about it and I am starting to have regular check ups at the doctors as my mum used to take me ever since I was around 12 for weight concerns, but they always said I was fine. I know people will also say it's from running about after the baby (Angel) but to be honest I play with her and that but not actively as she is only 4 months. Please help, it's freaking me out. My laptop keyboard can fit under my ribs,, that show skinny I am getting... I wasn't even on a diet!!! the heaviest i have ever been was 8 1/2 stone when I was 10 months pregnant, but I was 'all baby' - anyone know what could be happening??