Testosterone is the alpha and omega when it comes to anabolic steroids; all anabolic steroids are derived from testosterone; other anabolic steroids are simply altered forms of the testosterone hormone.estosterone is the alpha and omega when it comes to anabolic steroids; all anabolic steroids are derived from testosterone; other anabolic steroids are simply altered forms of the testosterone hormone.
Usually, it's damage from a physical injury or disease. 1  Cancer and other tumors can cause nerve pain. 2  HIV can cause painful nerve damage. 3  Diabetes is a common cause of nerve damage in the U.S. Over time, high levels of glucose in the blood (blood sugar) can injure the nerves. Shingles can be followed by a painful condition called postherpetic neuralgia. This type of nerve pain can be particularly severe and sudden.
Neurological causes may be due to disease, toxicity, or injury to one or more nerves. 1  Focal nerve injury causes paralysis of the muscle supplied by that nerve. Peripheral neuropathy is seen in conditions like: 2  Amyotrophic lateral sclerosis. 3  Bellâs palsy. 4  Vitamin B12 deficiency. 5  Diphtheria. 6  Heavy metal poisoning. 7  Snake bite.