I actually had this issue the other night. The pain was from 11am Tuesday to 11pm the next day. I actually went and got checked only to find out she was probably on my sciatic nerve. I was contracting but not dialated OR thinning.
I had horrible back labor. The day before I gave birth, I had my bloody show and contractions (nothing crazy; like Braxton Hicks) on and off throughout the day. I went about my business. My husband and I even went to go watch the UFC fight that night. Well, after we got back home, around 1:30 AM, I had a bad pain in my lower back and I felt like (TMI) that had to poop really bad. I went to the bathroom and felt a little better. Ten minutes later, the pain was back and went away. It kept happening but the pain was getting worse and lasting longer. I couldn't sit or lay down. I had to walk and breathe. I let it go on for two hours then told my husband to get his ass out of bed and drive me to the hospital lol
I had back labor the contractions werent bad in the stomach area like normal id getting shooting pain in my back and it felt like i couldnt walk or sometimes breath