Help please

Emily • Have a healthy little boy!
I'm 35 weeks today,and I have been having terrible cramping and have had a hard belly since last,night about 8pm I can barely walk or stand. I can't get comfy or sleep and it makes me want to rip my hair out....I'm beyond hydrated I practically sleep with water.... I have No clue what,it is???? Labor? Braxton Hicks?