Loss of appetite

All of a sudden I loss my appetite @38 weeks & 6 days. I’m currently 39 weeks today & I haven’t had an appetite lately for a few days .. my stomach been feeling weird like upset & I feel tired but nauseous. I have discomfort in my lower belly/vagina. I force myself to eat as much as I can the max I can eat is a meal in a day & 1 or 2 snacks .. why did my appetite change all of a sudden.?? I hate feeling like this it worries me it makes me feel like I’m just starving my babygirl & I don’t mean to😣🥺is it bad if I force myself to eat.??