I have some questions about PCS and anxiety related symptoms.

I have PCS now since March 2014. I have the common ups and downs. Good days are followed by bad days.

The first year passed on with a lot of symptoms that got better with time. But I kept getting into situations (driving on bad roads, very small hits to the head, and so on) that made my symptoms worse, so I started getting anxiety.

Just last Saturday the headrest of my sunlounge broke off while I was lying on it and my head plopped down backwards.
Anxiety set in right away. I was thinking that it could not have caused a new concussion but I got very anxious and frustrated. I cried for hours, being afaid my symptoms would come back.

Well, they did come back. Very bad. My tinnitus is very loud, my sound sensitivity is very extreme, brain fog, dizziness and so on.

Now my question: can all this really be caused only by anxiety? It's been four days and it is getting worse every day.

Anja