Why does this happen? is this normal?

Every time my boyfriend and i bicker about something, obviously it turns into a blow out because my hormones are running crazy and he drives me nuts to begin with, but as of the last 2 weeks, every time we argue my lower abdomen starts cramping, and i mean BAD..i get dizzy and i feel like i'm going to be sick...does this happen to anyone else and if it does what can i do to stop it, and if it doesn't what does this mean and how can i fix it? i don't want anything to happen to my baby!!