Is this a sign?

Last month i had a weird period.. And every since a week before af ive been getting sick to my stomach to the point where if I move i might vomit. I never ever throw up though.. Only if i have the flu. It happens every other day or so around the same time then goes away for a couple hours and sometimes comes back.. Does that sound like morning sickness or should i go to a doc and ask them whats up?