Braxton Hicks causing bowel movements?

I’m 33 weeks pregnant with “a big baby” (3+ weeks ahead). My first was induced at 38 weeks due to sudden pre-eclampsia, so I don’t know what typical labor or pre-labor is like.

I have been having BH contractions on and off for weeks, and haven’t really thought much of them. However, yesterday I had A LOT of them throughout the day despite drinking a ton of water. They are uncomfortable but not unbearable. They have gone around to my lower back, which does become slightly more painful, though. I have had a number of BH today as well (nothing at regular intervals), but they have now been accompanied by sudden bowel movements. Has anyone else experienced this?

I have been incredibly sore the last few days (pain in ribs, stomach muscles, feet/legs, back) and haven’t been sleeping.