Hi this is gershonb and I've posted elsewhere about my concussions. I'm finally getting evaluated, 42 years late, for all that.

Anyway, something has happened to me quite a few times when I'm just falling asleep. I'll just be drifting off, and then I feel an intense "BANG" on the right front of my head, as if someone threw a basketball at it with all their might. There's usually a big yellow flash of light, and then I'm upright, trying to deal with the adrenaline.

Has anyone else had these, or something like them?

gershonb