You discovered a hard lump on the back of your skull on the left side it is hard and is right on the bone that you can naturally feel on both sides but the left side has a lump on it no head injury?

Answer 1

The lump and the other symptoms may or may not be connected. It is a good idea to check in with a doctor to be sure. Try ice in a towel to relieve the swelling in the meantime. If you were knocked out when you received the bump on your head, you should be checked and observed for a concussion.

Answer 2

In order to find out that your headache is nothing more than an ordinary headache caused by inflamation head MRI or CT image must be done. This will help to rule out possibility of more serious life threatening condition like brain tumor, brain aneurism.

http://www.tensionheadache.medgrip.com

Answer 3

I don't mean to scare you, but it could be a tumor. Go get medical attention!

Answer 4

probably neurofibromatosis

Answer 5

SEE A DOCTOR!!!