By Steve Bressert, Ph.D. Narcissistic Personality Disorder is a disorder that is characterized by a long-standing pattern of grandiosity (either in fantasy or actual behavior), an overwhelming need for admiration, and usually a complete lack of empathy toward others.
Idiopathic sensory-motor polyneuropathy is an illness where sensory and motor nerves of the peripheral nervous system are affected and no obvious underlying etiology is found. In many respects, the symptoms are very similar to diabetic polyneuropathy.
Polyneuropathy is a condition in which a personâs peripheral nerves are damaged. These are nerves that run throughout your body. Polyneuropathy affects the nerves in your skin, muscles, and organs. When nerves are damaged, they canât send regular signals back to your brain. This condition does not affect the nerves in your brain or spine, however.