Palmer hypothesized that vertebral joint misalignments, which he termed vertebral subluxations, interfered with the body's function and its inborn ability to heal itself.[5] D. D. Palmer repudiated his earlier theory that vertebral subluxations caused pinched nerves in the intervertebral spaces in favor of subluxations causing altered nerve vibration, either too tense or too slack, affecting the tone (health) of the end organ.[41] D. D. Palmer, using a vitalistic approach, imbued the term subluxation with a metaphysical and philosophical meaning.[41] He qualified this by noting that knowledge of innate intelligence was not essential to the competent practice of chiropractic.[41] This concept was later expanded upon by his son, B. J. Palmer, and was instrumental in providing the legal basis of differentiating chiropractic from conventional medicine. In 1910, D. D. Palmer theorized that the nervous system controlled health:
Chiropractic is a form of alternative medicine mostly concerned with the diagnosis and treatment of mechanical disorders of the musculoskeletal system, especially the spine.[1][2] Proponents claim that such disorders affect general health via the nervous system,[2] through vertebral subluxation, claims which are demonstrably false. The main chiropractic treatment technique involves manual therapy, especially spinal manipulation therapy (SMT), manipulations of other joints and soft tissues.[3] Its foundation is at odds with mainstream medicine, and chiropractic is sustained by pseudoscientific ideas such as subluxation and "innate intelligence" that reject science.[4][5][6][7][8] Chiropractors are not medical doctors.[9]
One of the most common causes of neck pain is a pillow that is too large or too flat. Make sure that the pillow you use adequately supports your neck without causing any excessive bending. In other words, if lying on your back, your neck should not be bent unduly upwards. lf lying on your side, your neck should not be bent up or down (i.e. your spine should be in a straight line). Sleeping on your stomach with your neck twisted or bent to the side can also result in neck pain.

This article gives a well-rounded picture about things that can cause neck and arm pain. However, a patient should consult with their own physician rather than doing a self-diagnosis.  Some conditions, such as coronary artery disease (angina) or even lung tumors may mimic these conditions.  It is best to have a skilled physician perform a thorough physical examination when the symptoms described are present.
For over a decade, Advanced Chiropractic has been helping families achieve better health and wellness through the finest chiropractic care. Based in Maplewood, Minnesota, our team utilizes hands-on adjustments and a holistic (whole-istic) approach to wellness to enrich the lives and educate clients about the power of their own bodies. We have a special focus on prenatal and pediatric chiropractic, truly serving entire families.
The treatment of soft tissue neck and shoulder pain often includes the use of anti-inflammatory medication such as ibuprofen (Advil or Motrin) or naproxen (Aleve or Naprosyn). Pain relievers such as acetaminophen (Tylenol) may also be recommended. Depending on the source of pain, drugs like muscle relaxers and even antidepressants might be helpful. Pain also may be treated with a local application of moist heat or ice. Local corticosteroid injections are often helpful for arthritis of the shoulder. For both neck and shoulder pain movement, exercises may help. For cases in which nerve roots or the spinal cord are involved, surgical procedures may be necessary. Your doctor can tell you which is the best course of treatment for you.
Among people seeking back pain relief alternatives, most choose chiropractic treatment. About 22 million Americans visit chiropractors annually. Of these, 7.7 million, or 35%, are seeking relief from back pain from various causes, including accidents, sports injuries, and muscle strains. Other complaints include pain in the neck, arms, and legs, and headaches.
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