Braxton hicks

Recently, I am starting to feel the Braxton hicks the doctors talk about and I just want it to know if everyone gets them the same as I do. So I usually feel some tightening in the belly, and it feels uncomfortable. I am 31 weeks and 3 days and i am starting to feel them even in the middle of my sleep. Is this normal? My due date is November 30,  but because I am diabetic I am going to be induced at 38-39 weeks... depending how the baby is going to be.