BH or real deal

Ok - so I’ve been having BH since about 23 weeks. I’m 37 weeks now. These “cramps” have been on and off for a while and are more painful then what I’ve experienced up until now. They are manageable though. I haven’t started timing so I don’t know if there is a pattern. I’m also starting to feel nauseous and VERY hot. Idk if it’s real though because the pain is higher up. I have back pain too that comes and goes, but I’ve had back pain for a while so it’s hard to tell if it’s related. I do get pain and pressure below too, but again, I’ve had that for a few weeks now. Nothing makes the cramps stop though once it starts, but it’s not take my breath away. I am able to work through them.