I had a partial hysterectomy (just the uterus) back in 2009. Since then I have gained between 20-25 pounds and have started having hot flashes, waking up in the middle of the night sweating, insomnia some nights, and mood swings. I have not been to the doctor yet to have my hormone levels checked because it has not been bad over the last few years but about the last few months it seems to be getting worse. Could the weight gain and the mood swings along with everything else be from the hysterectomy and early menopause? I plan to go to the dr in a couple of days.