Menopause help, I can't sleep?

Ever since my hysterectomy I can't sleep at night. It is driving me insane:( I am 30 and a mother of 2, the kids will not let me nap during the day, so I'm up all day and dying for sleep by 10 p.m. I sleep only like 4 solid hours then I'm up pacing the floor, tossing and turning. I have given up and just started getting up, doing something like dishes or laundry or cleaning something thinking I will get sleepy and go back to bed. No such luck then the kids are up at 8. So I'm sleeping from 11/12 until about 330/400. That is only like 5 hours a night, is this normal? Do other women in menopause have a hard time sleeping. No I am not on any hormone's . I need help, any have any idea how I can get some sleep i've counted so many sheep I lost track..... Help!?