Once upon a time, there was a little thing called sleep...

I have not been able to sleep for the life of me. Ever since I hit my second trimester, its proving more and more difficult to get comfortable and I'm constantly peeing! I tried withholding liquid like an hour before I go to bed....does nothing. I am still up woken up, every two hours on the dot, to go pee....
Unisom, tea, baths, James rubbing my back, music, totally dark room, nothing works. I'm starting to feel like I'm going crazy.