I'm considering uterine ablation. However, I have a couple of concerns. 1) my periods aren't really horrible all the time, is it worth it? I get insomnia, cramps, they're 7 days long, I go through tons of tampons each month. 2) I'm worried about gaining weight the way my sister did after she had her hysterectomy. I've heard periods help women burn as much as 200 extra calories a day during their cycle. Does the ablation make you lose the hormones and calorie burn of a period?