Other Causes of chronic pain:
o Pancreatitis
o Cancer Pain
o Repetitive Motion Disorders (RMDs)
o Ankylosing Spondylitis:
Rheumatoid arthritis of the spine ;called also Rheumatoid spondylitis.
o Fibromyalgia:
Widespread pain, tenderness, and stiffness of muscles and associated connective tissue structures that is typically accompanied by fatigue, headache, and sleep disturbances.
o Multiple Sclerosis (MS):
A demyelinating disease marked by patches of hardened tissue in the brain or the spinal cord and associated especially with partial or complete paralysis and jerking muscle tremor.
o Peripheral Neuropathy:
Damage to the peripheral nerves in which motor, sensory, or vasomotor nerve fibers may be affected and which is marked by muscle weakness, atrophy, pain, and numbness.
o Pseudogout:
Pseudogout results from a build up of calcium crystals,calcium pyrophosphate dihydrate, in joints.
o Psoriatic Arthritis:
A severe form of arthritis marked by inflammation, psoriasis of the skin or nails, and a negative test for rheumatoid factor;called also Psoriasis Arthropathica.
o Reactive Arthritis:
Acute arthritis that sometimes develops following a bacterial infection (e.g. after infection with genera Shigella, Salmonella, or Chlamydia).
o Trigeminal Neuralgia:
An intense paroxysmal neuralgia involving one or more branches of the trigeminal nerve,tic douloureux.