I've been exclusively breastfeeding for three months now and I've never been so hungry in my life.  My friends all tell me they lost weight when they are nursing but I'm just getting fatter and fatter.  I lost a little bit of the baby weight in the first few weeks but now I've put it all back on.  I know I'm eating a lot but it's because I'm so hungry all the time.  I want to keep nursing but I also want my body back.  Has anyone else had this problem?  Is this normal?