Considering the fact that your prolapse may return if the uterus
is not supported as your job involves lifting weights, it is not possible to retain the uterus without a mesh. You can get a hysterectomy
done once for all as you need not worry about recurrences with proper vault support. Ovaries can be retained; there will not be any hindrance to sexual life also. As per weight gain, it is a matter of control on diet and regular exercise and it can be maintained if you stick to your weight training
and that should not be a problem. It can happen with natural menopause
too. Hope this helps.