just started the diet with the 500 cals, B-12 shots and the appetite supressants yesterday. Today I feel HORRIBLE!!!! MY body is in ketosis and I'm tired, fatigued, nervous, nauseous, jittery, palpitations and hungry. I know it's somewhat normal but how long is this going to last?? Is there anything that will help me feel better b/c I feel so sick I just want to give up. Is there anyone who's had similiar effects???