As I noted in my post titled "Made much worse by alcohol," my concussion got much much worse after drinking twice over a 4 month stretch, not resting, and now I have seen no improvement in 2 months. Starting yesterday I am beginning to feel a tingling sensation or sparks like feeling in my head.

Any idea what this might be? Is this something positive?

It's the first sign of life around that clogged thinking that has been troubling me so much. Though it hasn't helped the actual thinking blockage whatsoever I'm hoping it means the brain may actually be working to fix this issue. What are these sparks and tingling sensations in my head?