Alright, first off, I made a mis-type. I do around 5 and a half hours of cardio a week, and 8 hours of total exercise. My bad I go to my doctor regularly to have my weight checked because I am a recovering anorexic. However, I'm not 'ana-chan.' I am fully committed to keeping a healthy weight. We are both suprised that I maintain so low. I mentioned to my doctor that I am concerned by this, given that I am good with my calorie counting (food scale), and that I think I should be eating at least 150 more calories a day.  If I drop weight, I will gladly up my calories. I'm thinking I will need to eat more, and I might just be retaining water. I am trying to maintain muscle mass, meaning I do NOT want to drop weight. I am wondering if I have issues with bloating, because the numbers don't line up, and I weigh everything I eat. I should be eating more like 1600 a day, and I am thinking about upping to that. Currently, I weigh 97 pounds. It is a perfectly healthy weight for my height.   I have muscular problems, meaning I do not put on as much muscle mass. I do not know how this effects my TDEE. I am also 4'10.