A dull feeling in your left arm could be from overuse or strain. Learn what causes pain on this part of the arm here and ...

or a "pinched nerve," can cause arm pain. Swelling of nearby soft tissues or damage to surrounding structures can put pressure on an arm nerve. Symptoms include pain, numbness, tingling ("pins and ...

From muscle strains, bacterial and viral infections, and skin rashes, here are 9 possible causes of armpit pain and when to ...

Multiple sclerosis (MS) is a degenerative autoimmune disorder of the central nervous system, in which the immune system attacks the lining of nerves in the brain, spine, or eyes. Alongside muscle ...

A pinched nerve feels different from a stiff back, though the pain and symptoms vary among people ... especially in the buttocks, or a tingling sensation. Some people also notice a tight feeling.

Multiple sclerosis (MS) is a lifelong condition that affects the brain and nerves ... says MS can cause a wide range of potential symptoms, including problems with vision, arm or leg movement ...