Hi I had lump on my head which was very tinysince I was 13 or 14. Now I am 35 and suddenly last week it got bigger and a little protruded with yellowish white thing at top of the lump which was bigger but got smaller and pointy, half of it also came off but still attached to luom a little bit. The lump is moving and I have no pain just little discomfort when I lie on tgat side of the head but I feel no pain. What do I have? Do I need surgery or something to remove it?