Queasiness concerns


Ok so today it seems I can't eat anything. I've had yogurt, a sandwich & chips...even pineapples earlier today and seems like I can't get my stomach to stop hurting....I don't know if I'm starting my morning sickness but I'm very queasy & almost everything tastes like my prenatal which I dont take until dinner. I know I have to eat something but not sure how to combat this. I'm actually 7wks today. I couldn't even go to work today due to stomach pains & constipation.