Very Little Sleep = Preggo Meltdowns

I am soooo tired!! and the baby isn't even here yet!! The last couple of nights have been very restless for me. Toss and take 5 minutes to Turn, toss and take 5 minutes to turn, get up to go pee, fall assleep for a little bit, toss and take 5 minutes to turn, toss and take 5 minutes turn, get up to go pee....and then repeat over and over until the alarm goes off. I feel emotionally spent and so tired I just want to sleep. My doc even told me to try Tylenol PM...didn't work:( So far I have had 2 melt downs within the last 12hrs....its the little things that can just set the tears to flowin'.