I have a small lump or cyst, I'd say about marble size or a little smaller at the base of my neck near my spine. It is semi soft and somewhat movable and it has been there fir several years. Its starting to cause me pain when I lay the back of my neck against something and I'm wondering if I should be concerned. I have another one about a inch from my pine in the T7 area and I've noticed lately that I have what feels like tingling coming out of that area and radiating into my shoulder blades. Any ideas?