A spasm is a sudden, powerful, involuntary contraction of muscles. The muscles feel painful, stiff and knotted. If you have neck muscle spasms, you may not be able to move your neck â sometimes people call it a crick in the neck.
Polymyalgia Rheumatica Polymyalgia rheumatica (PMR) is a disorder of the muscles and joints that causes pain and stiffness in the arms, neck, shoulders,...learn more Â».oint stiffness can be caused by injury or disease of the joint and is a common finding in the arthritis conditions. Joint damage, including stiffness, can also occur following injury to the joint.
Causes of joint pain include: Adult Still's disease. Ankylosing spondylitis. Avascular necrosis. Bone cancer. Broken bone. Bursitis. Complex regional pain syndrome.