same here. looks like your baby is low , getting ready to enter this world .
I'm also 35+2 today and experiencing the same thing. It's so painful that sometimes I want to cry. Glad you asked this question because I'd like to know what's going on too.
This happened to me too at 37 weeks. I would be literally doubled over with the pain. I found trying different positions helped, like all fours or sitting with my legs apart and belly leaned forward. I am 39 weeks now and those pains have pretty much stopped. It may have something to do with baby moving down or the cervix lining up with the birth canal. If you have any bleeding or fluid though you should check with your doc. Good luck!