Braxton Hicks with Activity

Anyone get Braxton hicks contractions when they are the least bit active? I mean doing simple house work even. I drink tons of water all day, but it does nothing to stop or even slow the contractions when I walk around the house to clean things up. I take it slow and take brakes when they get too frequent too! I'm 25 weeks and this is my third pregnancy (I'm almost 35). My midwife told me BH can be more common with subsequent pregnancies but this seems crazy to me how easily they come on. 
We are trying to sell our house so I have to keep it very tidy in case a possible buyer wants to stop by at any given time. So as much as I'd like to say screw the house work, it's not a viable option at the moment :)