I've had major pain problems in my back for over 15 years--2 days prior and 1 day into my period. I've never been in labor before but my mom and grandmother each time they've seen me in this state, it reminds them of when they were in labor.
There are times when it hurts sooo much that I cry and if I don't take pain killers fast enough I go into a hot/cold sweat and/or throw-up. I warned my husband about my pain that it was bad but he didn't know how bad I had it till he saw me about 3 months ago agonizing in bed with the pain because I didn't take my pain killers fast enough.
When I was in high school, I'd skipped 3 days of school every month because I didn't want to feel the pain that I did while I was in class. No one really ever picked up the pattern or knew about it except for the school Counselors.
I remember when my grandmother would say to my sister's after I got up from sitting on a chair "Don't sit there, Jade sat there."
PS: ADVIL I my drug of choice.