I'm not sure if this is classified as a mental disorder or an eating disorder as there isn't really much research on it. I have SED (selective eating disorder). It's extreme pickiness, and if I eat foods I like but not craving for, it literally makes me sick to my stomach and nauseous, I can't stand textures of many foods, even if I may like the taste or smell. Eating is such a chore, and going out to eat makes me nervous because people are going to judge me how little I eat or what I eat (simple meals). And trying new things is really hard. I have to like the appearance and smell of the food before trying it, and the texture. Sometimes I'm picky with my food in how its chopped up. I might not like a slice of ham, but if its cut into cubes, I find it more appealing to eat.. Idk I'm rambling, sorry '~'