Braxton hicks becoming more painful?

I'm 33+4 today and I've been having BH normally for awhile but they've never been painful, my belly would just get hard for like 30 seconds then go away. My doctor said I probably have a higher pain tolerance than others. But for the past few days I've been noticing when I get a BH that I get a little crampy feeling down in the same area where period cramps are. It's not "painful" but more noticible than before. Is this normal?