Forgot to mention this in yesterday's post.
The scar is three sides of a rectangle (two short sides and once long side), which they opened like a flap to access my skull - sorry if you're squeamish. It's really odd how the middle of the rectangle has gone numb. I can feel it a bit, but only just - like it's through several layers of thick material.
What makes this interesting is when my head is itchy. I can't feel when I scratch it, which is really frustrating as the itch never goes away. It's a really odd feeling.
Just thought I'd mention it.