I need help regarding my pcs.

I had a concussion 9weels ago. I was assaulted by some guy with a king hit.
I had LOC 90sec, amnesia,nausea,confusion etc.
And then after a week the scary pcs sympots, it took me 9weeks just to feel bit better.

But yesterday when I was driving back from my Docter on a sharp turn I pulled my car brakes quick enough and I felt nausea and sice then I'm getting headeches and sharp pain in head.

Do you guys think its a new comcussion or I just aggregate my pcs. I'm really scared ATM.