Pain is physical suffering or discomfort typically caused by illness or injury. Chronic pain is defined as any pain lasting more than 12 weeks. It can persist for months or years.

Multiple Sclerosis is a chronic, typically progressive disease involving damage to the myelin sheaths that protect nerve cells in your brain and spinal cord. Symptoms may include numbness, impairment of speech and of muscular coordination, blurred vision, and severe fatigue.

A migraine is a recurrent throbbing headache that typically affects one side of your head and is often accompanied by nausea and disturbed vision. Symptoms may include sensitivity to light, sound, smell or touch, nausea and vomiting, lightheadedness, and blurred vision.

Glaucoma is a progressive condition that causes pressure in the eyes and can lead to permanent vision loss. Symptoms may include blurred vision, rainbow auras, severe eye and head pain, nausea, vomiting, or sudden loss of sight.

Fibromyalgia is a chronic disorder associated with widespread pain in the muscles and bones, areas of tenderness, and general fatigue. There isn’t a clear known cause, and fibromyalgia is often misdiagnosed as another disease.

Arthritis is an inflammation of one or more joints. There are many different types, including osteoarthritis (OA) and rheumatoid arthritis (RA). Symptoms may include joint pain, stiffness, or swelling.