Yah they seemed to think that anxiety played a big role in prolonging concussion symptoms in many people. I can't speak for whether or not they would have suggested it to others but for me they said an ssri would be greatly beneficial. I am going for another appointment in a couple weaks and guessing they will prescribe me Elavil however I'm not yet sure if I will start taking it since I have certain reservations regarding these kinds of medications.

I think it should be a personal decision. If you feel as if your anxiety can be managed through things like therapy, excersise and making proactive decisions to reduce stress in your life then that would definitely be ideal. If your anxiety is so debilitating that you see no way out or possibility it will improve on its own then medication may be necessary, like Mark said.