should I go to ER..I just don't want to be dramatic!!

I'm 35 weeks pregnant...Had some nausea, followed by explosive diarrhea...:/ my head has felt fuzzy most of the day. Also haven't felt baby move much at all today.. I just don't want to be over reacting!! What do y'all think. FTM. I feel okay at the moment. But the dirrhea came on suddenly.