I'm 22 weeks with twins and I've been having BH contractions... I get this queasy/nauseated feeling when they hit. Is that normal?

My midwife said that I should expect BH because I have twins and my uterus is stretching in all directions... but it's still uncomfortable!

Is there anything you've done to ease them? Or do they just come around no matter what? (If you couldn't tell, I'm a FTM!)