I Have Numbness And Burning In My Fingers That Radiates

I have numbness and burning in my fingers that radiates through my hand and up to my elbow. This has progressively gotten worse over several months. The pain has gotten so bad that it wakes me up each night and most often brings tears; at best, it causes no solid, restful sleep. This is affecting me at work, as well, to where I have to stop working to get a tiny bit of relief. Even now, typing is causing pain. It's went beyond numbness now and is so painful. Please, give me some answers.