How can I bring myself to eat?

Long story short, my boyfriend got hit by a car, is in the hospital, and is in a coma. I haven't been able t oconsume anything besides Liptopn Raspberry White Iced Tea and saltine crackers. If I eat anything else, I get physically sick. I am just so upset and stressed right now. My mom is really worried about me, but I CANNOT eat? Is there anything I could do to help me keep food down? Please and thank you. Also, if yo ucould pray for Gabe to come out of the coma, that would be great. :)