I Have A Movable Rubbery Feeling Lump On The Bone

I have a movable rubbery feeling lump on the bone behind my left ear. It's been there for a few years. A couple months ago I felt a hard, more firm lump above that one, at my hairline. It is small and hard and doesn't seem to move. When I showed my doctor she acted as if it was nothing and just the way my ear was. I've been pretty upset by this because these lumps weren't always here and sometimes I get discomfort behind that ear. Especially during stressful times. I am worried and not sure what to do as my doctor seemed very quick and not helpful with this.