i have a lump in the right side of my neck that has been there for 2 years but about 5-6 months ago it has cuased me alot of pain. i get sharp pains shooting done my arm i have been to the doctor but they wont do any test on it to find out what it is the just keep putting me on ibueprofin abd cephlexin which havent helped at all it has gotten bigger over the past few weeks it is about 1 1/2 inches long about 1 inch wide it is not noticeable unless i turn my head to the left and then it pops out but even turning my head hurts i even loose feeling in my hand sometimes but my thumb i never feel anymore what should i do??