Coal, oil and natural gas are three main types of fossil fuels. Fossils fuels are combustible materials that are formed over millions of years by the decomposition of plant and animal life. Continue Reading.
Some of the possible common medical causes of Extremity pain may include: 1  Brachial plexus lesions. 2  Carpel tunnel syndrome. 3  Biceps tendonitis.  Raynauds 1  phenomenon. Sickle cell anemia.  Black widow spider 1  bites. Polyneuropathy.  Cat scratch 1  disease. Post herpetic neuralgia.  Erythema nodosum.
Subscribe to our Pain Management Advisor e-newsletter for tips to manage pain. Shoulder pain causes include: 1  Avascular necrosis. 2  Brachial plexus injury. 3  Broken arm. 4  Bursitis. 5  Cervical radiculopathy. 6  Dislocated shoulder. 7  Frozen shoulder. 8  Heart attack. 9  Impingement.