Oh I feel your pain, sister! :) Hang in there! I just had baby #3 (my 3rd in 4 years) and each pregnancy poses its own aches and pains and hard times. Sorry to say it doesn't get any easier. Just remember that pregnancy is a means to an end. The baby that will be here soon in your case will be here and in about 6 months you will feel better and begin enjoying him/her, your body will be alleviated of much of the pain, and you won't have to endure the silly side effects like heartburn, acid reflux, gas, hair falling out (after you have the baby, get ready for that!). It's amazing what we women go through to actually have children. If our mothers told us how awful pregnancy was, would we ever give them grandchildren? HA!
I too, was feeling as miserable as you and even had to go to a physical therapist to deal with the overwhelming back/leg pain. When you're pregnant, your muscles and ligaments relax, thus not giving your body the support it had before pregnancy. Messed up, I know. BS if you ask me. But it does happen to lots of us. In addition to the difficulty breathing, sleeping, moving around. It's all a joy! Ha! As soon as that baby is out of you I guarantee you will feel an INSTANT relief. It's a physical blessing--not only the bundle of joy you brought into the world... but the feeling of easy breathing and weightlessness you experience when the baby is out of you. You will relish that moment, as I have 3 times now. It's coming for you soon, just hang in there. Get a body pillow for support when you sleep, if you can sleep. My doctors always prescribed me a sleep aid, which helps. Get a prenatal massage if you can. Take it easy-- don't over exert yourself, and put your feet up ALOT. As in, all the time. You'll get through it. Congratulations!!