Complex Regional Pain Syndrome (CRPS) is a chronic pain condition that typically affects an arm or leg, characterized by intense pain and changes in skin color and temperature.

AIP is a rare genetic disorder causing recurrent attacks of abdominal pain, neurological symptoms, and sensitivity to light.

CIDP is a long-term nerve disorder causing inflammation and damage to the peripheral nerves.

Sjögren's syndrome is a chronic autoimmune disorder that affects moisture-producing glands, causing dryness in the eyes and mouth.

Acute Intermittent Porphyria (AIP) is a rare inherited disorder that affects the production of heme, leading to neurological symptoms.