I have been feeling a small lump (around 1cm diameter) on the back of my head for the last month.  It is just on the hairline and on the right hand side of the head.  I did use to feel when I was younger.. maybe 10years time or so but I never remember it took so long to go down.  I did show it to a doctor and told me it was nothing but from a week or so I have ear pain (a numb feeling) and sometimes some headaches.  I do touch it a lot of times during the day which I think made it a bit more sensitive.  Sometimes I also get aches from around the lump.  Could this be something serious please?

I suggest you get a second opinion.