When something traumatic happens to us as children, they replay themselves to us as adults when we are under stress, and extremely tired. Not only do they replay themselves, but they tend to expand to include those around us who we care for....making your children seem vulnerable to this type of attack.
If you never really had 'closure' from this terrible event, or the person who abused you was never punished or brought to justice for the act, you may still feel the effects of the abuse.
If possible, talk to your doctor about your prescription. You may need to talk with an abuse counselor.
I really feel for your situation. I was sexually abused as a child. I had closure and was able to move on. It helps to talk about it with a trained counselor, or specialist. What happened to you was not your fault. No child ever deserves to be abused.

Hugs & Hope,
J