Last night I found a hard lump on my skull. It's on the left hand side - if you drew a line from your eye round the side and a line up from your ear, it's where the 2 lines meet, well possibly a little bit further towards the back ..... hope you get that.
It is solid - feels like bone and hurts if I fiddle with it .... which of course I can't stop doing! It's quite wide across - 2 fingertips wide. It's alarmed me as I haven't noticed it before.
Any ideas?