I think tackling anxiety through therapy is a good idea. Anxiety is a common theme with PCS and it exacerbates symptoms. It's been proved that meditation can physically affect the brain so practicing relaxation and mindfulness will be beneficial over time. I was left with what I'd term residual anxiety which I'm dealing with this way. The mind is much more powerful than doctors give it credit for. BTW I went decaff and try as much as possible to cut out sugar which helped too. We live in a highly strung modern society which doesn't help.