Oh darling, 1 day is not enough) So it is pretty normal. Wait a couple of days before your body gets used to the drug.
upd. By the way do you still eat? Because if you think that weight loss is about starving and you don't eat enough (small portions but healthy fat-free, low-calorie foods) of course you'll feel hungry. Just share us some details, otherwise it's hard to say.
Biscuits and cheaps are bad. Fruit are good, but your body still needs meat, fat-free, low-fat, but meat. If you don't consume proteins (which are missing in fruits!) then your muscles will be damaged. It's true.