My neighbors say my new doctor tends to overdiagnose everyone. He thinks I might have mitochondrial disorder. Can you tell me the symptoms?

HYPOchondrisis. A preoccupation with body functions and interpretation of normal body sensations as illness in an otherwise healthy person. The word comes from greek for "below the rib cartilage".
Mito usually missed. Suspect mitochondrial disease with involvement of multiple organ systems--immune system dysfunction (both autoimmune and susceptibility to infection), the autonomic nervous system (gastrointestinal motility, irregular body temp, blood pressure, heart rate and rhythm, heat intolerance), periodic muscle and joint pain; progressive weakness throughout the day, neurologic problems.