Idk what to do...

Have anyone felt this type of way , I swear I'm not the type to be getting mad over bs .. but my fiance is getting me to that point. our relationship is great he such a good man, but the problem is when we talk and come to a point where we disagree and yes every relationship gone have problems and arguments. My point is whenever I hold back my anger and I start calming down my head starts hurting/pounding afterwards and I hate it, back then I had anger issues where I would either hit or wanting to strangle someone maybe that's why, just wanted to vent