I have it prior to pregnancy but gets so much worse when im pregnant but my doctor won't prescribe me anything

I started having it around 19 weeks to the point I couldn't even get out of bed without excruciating pain, and couldn't work at all. Finally had to go to the ER and after trying heating pads, warm baths, and rest they prescribed me flexiril. I only took it for a week, and only took one a day instead of the 3 x a day it says. I hate taking any medication especially things like that. But It helped dramatically and I think as baby started changing positions in the following weeks it helped too.

I don't know what to do to make it feel any better besides a heating pad

Oh my god, yes!! It's so so terrible but I never had the pain pre pregnancy. It got horribly unbearable about 3 weeks ago. I feel your pain @missycobbler