Another sleepless night

Ugghh! Well, this makes 3 nights in a row that I have not slept. I can not understand what is going on,or if my body is trying to tell me something.I have been to the doc over this problem several times. He just keeps telling me that it is stress from my 2nd divorce and dealing with my house so on and so on. He has even put me on a sleep aid but no luck. And really all it does is make me feel spaced out at odd times of the day(times that I should be alert). Could this be something that we are not seeing should I have a 2nd opinion. Well, if anyone has this issue and has found something that helps them sleep please share. Maybe it could help me.I know not sleeping can lead to other health issues but on top of that it makes me feel so darn old because of not having energy.