question: i ve had a large lump about 2 inches below my left ear and about an inch toward the back of my neck from my ear...i was in a car accident last year and noticed it right after...none of the doctors i ve seen have been too worried about it, but i would like to know wut it is...now i have pain that radiates throughout my body sometimes my ankles or elbows or feet or hands or knees...please help ; ;