Were your Braxton Hicks contractions worse with your first or second child?

My midwife keeps assuring me that at this stage (33 weeks) this is completely normal, I feel like my Braxton Hicks contractions are out of control. They aren’t painful, but they are heavy, for lack of a better term. I feel like they last forever. Not only that, my ligaments and joints in my legs feel so loose around my hip bones, that sometimes I feel like I can barely walk. Anyone else have a similar experience or any suggestions? (babysits very close to the front of my uterus, and I can feel every little movement. I am afraid that I’m going to mistake Braxton Hicks for actual contractions since I did not feel them with my first)