Hi. I’ve had PCS for 4 years now. Usually when I keep my stress down I don’t even notice I have it anymore. Yesterday I was sitting down on the floor and somehow lost my balance when I sneezed and tapped my head on the floor. I didn’t even know if I hit my head at first . I kind of slowly went down and my body twisted and my head tapped the floor. I still have poor balance issues. Can’t you relive feelings from your head injury that caused the pcs from minor bumps and injuries? The only symptom I was scared about was being kind of sleepy but i attributed that to poor sleep the night before yesterday.