It hurts very badly.. It comes in waves for sure. I never felt any in my stomach

It's horrible and I'm sorry if you have to go through it. It is a pain that doesn't go away really but intensifies in waves which are contractions. The things that helped me the most were getting in a hot shower on my back, on and off with a hot towel on my back, and getting on all fours and swaying my hips. Also if it gets really unbearable ask your OB about Tylenol pm. I was shocked mine okayed it but it did help me get 2-3 hours of much needed sleep. Back labor can give you irregular contractions even if you're in active labor so make sure as it gets worse you do your best to time them and get checked.