Braxton Hicks vs False Labor Contractions

greeneyed_bride

I've been having Braxton Hicks contractions off and on for most of my third trimester, but for the past few days, they've been much more frequent (especially at night). Sometimes, they're accompanied by menstrual-like cramps that increase and then decrease in intensity. I know that this doesn't necessarily mean anything, but I'm wondering what the difference is between BH and false labor contractions? Is there even a difference? I'm a FTM, so I have nothing to compare this to.