Sciatic nerve pain while pregnant.

Any other ladies out there with this problem? I got it when I became pregnant with my first. I thought it would only last through pregnancy so I coped with it. After delivery the pain greatly reduced, but was still there every once in a while. Now I am pregnant with baby #2 and it is back with a vengeance. It's gotten to the point where if I am sitting on the floor(playing with my son or something) or squatting down/bending down(Like when cleaning/picking something up) it is getting extremely difficult to get back up. I can be walking and get a sharp pain and my leg(s) give(s) out. I have not had any falls yet. Sleeping is near impossible now. Yesterday morning I got up at 3 am and today at 1am due to the pain. Any movement during the night causes pain to the lower back area. And getting up out of bed in the mornings is just a nightmare. The actual lifting of the hips(when you readjust your position) and then getting my legs over the edge of the bed takes a good 3 minutes(I know it doesn't sound long but when you compare it to the seconds it sometimes takes others vs minutes, it's quite a difference)

So sorry for the long novel. I have a doctors appointment in a week but I guess what I am trying to ask is...

Any other ladies out there with this issue? What kind of remedies are there that are safe while pregnant?