I doubt your endo has any effect on your body shape/composition, but the BC pills probably do. Talk to your doctor. I had endo until I went through a fairly early menopause. Depending on the severity of your pain, the hormones may be worth it. You aren't overweight, so I'm not sure what the issue is? If you feel "fatter" even if your weight is the same, it's probably water retention from the pill. How about changing your exercise to build more muscle and burn fat?
edit: oops, just re-read your post. OK, you did gain weight. Now you are a more normal weight for your height. I do think it's the effect of the pill, but talk to your doc about a more minimal dosage which would still control your symptoms.
Falling down is not failure....Failure is staying down.
Save the Earth, it's the only planet with chocolate and wine.
It isn't about waiting for the storm to pass...
It's about learning to dance in the rain.
9 years at or under goal weight!
Working Maintenance Everyday