You may have to undergo a variety of medical tests to rule out other health problems like depression, schizophrenia, eating disorders such as
anorexia nervosa, bulimia, bipolar disorder, alcohol abuse or other substance abuse; current morbid obesity, and active medical diseases.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor.