I can't eat more than a few bites of food before I start feeling sick, like I start to get nauseous and feel like I can't fit anymore food in my mouth, sometimes I'm still hungry or I really want to eat the food but I physically can't bring myself to take another bite even though I barely ate anything. Sometimes it depends on the food or how hungry I am, usually big meals are the hardest to eat and I can't stand chocolate because it dries out my mouth even though I love the taste. I'd say Oreos are the worst for me, can't eat them for the life of me and I used to love them. I can generally tolerate fresh fruit or any drink, or small servings of chicken. I don't know why I have been struggling to eat, my best guess is stress but it could be something else.