I' ve been having pain in my hands and feet for about three months now (sometimes at the side of my head as well). Sometimes it feels like an explosion - small, sharp pain which then shoots out and becomes more aching. This lasts a few seconds, but there is a burning and itching pain which is there the most of the day and when I sleep. Worse when I' m hot. Have been tested for arthritis (negative) and inflammation (negative). Have been to Chiropractor as well, nothing wrong with my back, no pinched nerve. What can it be? I haven' t had any injuries. And don' t know what to do anymore. Anti-inflammatory pain killers don' t help. Can this be nerve-related?