Braxton hicks , how often and when do u get them?

Marisa
How often do you get Braxton Hicks this is for women mostly in their third trimester. I'm 27 weeks I feel I get them every couple of hours they're not painful. I get them when I have a full bladder, change positions quickly need to have a bowel movement or with prolonged standing. What are you guys normally doing when you get them and how do they feel