Doc, I have a bump on my head , small in size, hard and painless. I had this when I was a baby if I'm correct. I'm extremely worried that it's a tumor/cancer/cyst. It did not became bigger nor smaller. It's round on top and it feels like a bone connected to my scalp. I also want to know why is my haemoglobin level higher than the average male. Will these two problems give me side effects in the future? I'm sorry if my question is in the wrong problem area. Thanks.