Painful Braxton-Hicks?

An

I am currently 29 weeks and I’ve had AWFUL cramping for about a week now. I even went to the hospital a few days ago because it got so severe I could barely move, but I was told it was nothing. It feels like diarrhea cramps (and I did end up having diarrhea a few hours after the worst time) that come and go every few minutes and primarily happen at night, but not always. It’s throughout my entire abdomen, but tonight I’m also feeling the pain in my back. Is this Braxton-Hicks? I’ve heard Braxton-Hicks aren’t supposed to be painful...?