FTM-Braxton Hicks or something else...

The past few days I have been feeling this painful cramping feeling all over my abdomen and lower back. I have tried to read other people’s experiences with BH but nobody says anything about the lower back pain I feel. And it isn’t just uncomfortable it’s actually really painful for like 30 minutes to sometimes an hour. If it happens while I’m walking i sit down and it goes away in 30 minutes, if I am laying down when it happens it doesn’t go away for an hour or more. Idk what to do or if I should be really concerned. Any experienced mamas out there with any clue as to what I should do?

Some extra info - I haven’t been able to sleep well for the past few weeks and this pain isn’t helping