I've had back problems since I was 11 when I fell on rocks at the beach in Newquay. Fell right on the end of my spine, never been the same since.
This last 2 weeks, back has been absolutely unbearable also. The 5 month mark is when it got really bad with my DD. I've been seeing a chiropractor ever since and he really does help. My SI Joint gets all out of wack. I basically become a cripple by the end of the day, I can't walk, put any weight on my legs. The pain just takes mu breath away. It sucks so bad. Its just down to the extra weight, my back can't handle it. As soon as I gave birth to my DD it stopped instantly, so at least I know there's an end in sight.
If you can see a Chiropractor its really worth it. The first couple sessions you'll be sore, because they un trap things that have been all snarled up, but after that its awesome. If you're in the USA, Insurance should cover it and it will be a co-pay. Medicare you'll have to get a referal, but they will cover it for you. If you're in England, you can go private or ask your Dr to refer you and the NHS will cover it most times (I used to see one back in England also)
I have found that if I sleep on my side, a pillow between my knees does help a lot because it helps keep your lower back in alignment when you sleep, or if you sleep on your back, put it under your knees so they are slightly bent, this also helps to support your back as you sleep.
My DH said I can get a prenatal massage on my lower back for my Birthday. I'm so excited
Some other things that have helped mine (if you wanna try it) is Epsom salts bath. (1 cup to a bath of hot water) .. soak for 20 minutes. Make sure you drink a cup of water after because it can get you dehydrated. It's excellent stuff, do it just before bed.
Ice pack on the area, 15 mins on, 15 mins off for 1 hr. You can do this as much as you want in the day. Sometimes I fall asleep with one on my back. This takes down the swelling in the area. A heat pad will encourage blood flow, therefore swelling, compounding the issue.
You can take paracetamol, but that's it. No heat rubs, icy hot etc.
There is a yoga stretch called the something cat, where you're on all 4s and arch your back then let it drop in to an opposite arch. Its really good for untrapping areas in your lower back. If you google prenatal yoga stretches, a load will come up. It's really worth doing a few first thing in the AM and last thing in the PM just to loosen things up. They really do work wonders.
Not long to go, ladies