Braxton Hicks..

Johana
Should I be timing Braxton hicks? I've had them for several weeks already but now with due date being much closer I tend to feel them more now. I feel the tightness on my belly for about a minute, and I feel breathless but no pain at all. They seem to be coming constantly. I just don't know if I should be timing them? If they are a huge deal? I know a lot of woman don't experience pain with contractions so I have no idea what to look for.. Any one else dealt with this?