Your psychologist is an idiot. Get a better one ASAP.

I got my PCS in a terrible accident, so of course I've got PTSD, too. PTSD aggravates PCS, it doesn't cause it. The other thing bad/lazy clinicians will tell you is that you've got PCS symptoms because you're "just" depressed. No, I'm depressed because I have PCS. Anyway, you get the picture. Finding clinicians who understand our condition has been a struggle for pretty much all of us here. But I digress...

Yes, stress makes it worse. At bad times, I have found myself in the fetal position on the floor unable to function. I also find I stress far more easily than I did premorbid. Making even small decisions is difficult. Before my injury, I was cool as a cucumber. Now I get anxiety and panic attacks.

Cheers