I was in your position a few weeks ago, I'm 38 weeks now. I was still running, weight training, going to school, and taking care of our 2 yr old, not to mention running errands and being a wife. I asked my OB what I should do because I couldn't sleep well or fall asleep, I'd just walk around tired, but still managed to do everything.She said to take Melatonin- it's a natural supplement you can find at health food stores [Trader Joe's, Whole Foods], or vitamin stores, probably even the vitamin aisle in Target or Wal-Mart. It does work, and I didn't feel like I developed a dependency for it [I can finally sleep again on my own!]. She also said it's safe to take TylenolPM- she said it's basically Tylenol with Benadryl. I didn't feel comfortable with that- Benadryl does some weird stuff to different people.I was also going insane and waking up with a stiff left leg and arm everyday. With my first, I didn't worry as much, but I decided to pipe up this time since my anxiety was driving me nuts. My OB looked at me as if I was nuts when I told her I was only sleeping on my left side. She said it's perfectly fine to sleep on your right, but didn't recomend sleeping on my back [when you get a little bigger, you'll totally see why].Try some Melatonin and just remember to sleep on either side, don't let the anxiety get the best of you! Its natural to worry, but these babies can handle a lot more than we could ever give them credit for!