I have been asked similar questions about the event leading to my concussion. I hit my head at work on a piece of equipment that was hidden behind a curtain. I had dropped some paperwork and had been sitting up on a high chair. I slid down off the chair and bent down to pick up the paper all in one swift motion. I smashed my forehead into a metal bar, not realizing it was there and was stunned for a few minutes. I had a huge bump and bruise on my head for a week. My symptoms of PCS started about 7 days after the event. Initially, I had the misfortune of seeing a doctor who insisted that I did not have PCS, and that there is NO WAY I could have struck my head hard enough to experience a concussion. I then saw a neurologist who confirmed that it was, in fact, PCS and that she sees many people for PCS who have had 'minor' head trauma. It is now three months later and I am still experiencing many symptoms. I think often of that first doctor, who misdiagnosed me, and caused me much anxiety of wondering 'what is going on with my brain?' At least now I know the reason for my symptoms and am trying to stay positive while I heal.