I have had Post Concussion Syndrome for about five months. I was out testing water samples, fainted, and hit my head on a few rocks. I was later diagnosed with PCS. My symtoms have been improving a lot, and I thought I was pretty much better. I recently started resuming my studies, and my symptoms have returned. I also had a hair appointment where they pretty aggressively shampooed my hair. I was wondering if this could have somehow aggravated by symptoms.

Thanks.