Jan of 2021 I fell on a small wave ~2ft. I hit the water with the side of my face in a strange way that felt like a moderate slap but didn't think much of it. I kept surfing and caught plenty more waves. A couple days later I noticed I was very tired and couldn't focus. Finally I figured out I had a concussion, took a few days off work and got better within a week.

In Oct I fell again, in the same strange way, but this time from a much higher height. I didn't blackout but I immediately knew it was not good. My symptoms have still not fully resolved 2 months later. The skin on the left side of my head is at times extra sensitive and at times borderline numb. I frequently have trouble focusing and have ended up taking 50% sick time to recover. The good news is that overall the symptoms are getting better.

I've surfed for over 20 years and fallen on significantly larger, more critical waves with no injury. Losing the ability to focus and think clearly is terrible, I wouldn't wish it on anyone. I also believe that because it's not a visible injury (ie I'm not walking around with crutches) it's harder for others to empathize with. Thankfully I feel supported by my employer, but I now believe that head injury severity likely goes undiagnosed and certainly under-appreciated in our society. The falls I took were very minor, if it can happen from that, my guess is it's more frequent that we realize.