These questions will give you context on which to base your concerns of anorexia nervosa. This will go beyond simple pickiness as dinnertime. A person who is showing food anxiety will not want to eat around other people and might eat significantly less food, even those that they typically enjoy. Often this food anxiety will be noticeably more prominent than generalized anxiety, even if your loved one has been diagnosed with both. Certainly, multiple psychological conditions can coexist, and more than one can cloud diagnosis of another one; in particular, the emotional symptoms of anorexia nervosa can be clouded by depression, anxiety or mood disorders. This is the most common symptom of anorexia nervosa when viewed from the outside. Orthorexia, which is a disease of pathologically over-exercising and obsessive food choice, can cause dramatic shifts in weight but will look very different from the outside than anorexia nervosa will.