Hi
Me too, have knocked my head twice since , one 4 months ago and one 4 weeks ago.
Although not as bad as yours, but a hit none the less.
It's. 18 months since my PCS and things are progressing but these hits can set you back some what.
I do hope you recover quickly from your latest hit, maybe a crash helm it might be in order !!
Good luck with your healing.

Ninelives x