Anxiety disorders are common with PCS. Some are of an organic causation. Others are due to the stresses and sometimes PTSD of the injury/trauma.

It is not uncommon for GPs to prescribe anti-anxiety drugs during the anxiety phase of recovery. I think that sometimes, it helps the doctor more than the patient. The patient finally stops calling and complaining so much.

Be careful about a "try this and see if it helps" kind of prescription response.