I just recently started cutting junk food out of my diet. I've lost about four pounds, but this weekend I started getting stomach aches and the feeling that I am still hungry after I've just eaten. The feeling is almost like my stomach is going to growl, but it doesn't. On Friday I kept eating to satisfy the "hunger" but woke up the next morning with a stomachache- as if I'd eaten too much. I got my meningococcal, varicella, and HPV vaccines this Friday also, but I doubt that's the cause. I've been drinking more water, and just today I've tried taking anti-acids to help, but I still feel hungry about 30 after a good meal. I've been taking vitamins also, I don't know what's wrong. Is it because I've lost weight?