Surfing a huge overhead tube of a wave last weekend, I managed to get clonked on the head by my own surfboard. Whilst I didn't get concussion and wasn't knocked out, I did lose a lot of blood and had to get rushed to hospital where a sadistic (but very sweet) nurse put 4/5 stitches in my head. I felt a bit weak and light-headed for the next couple of days but seem to be back to normal now. For instance my usual slow 20 min cycle into work hasn't been a problem.
Is it going to be ok to go out for an easy-paced hour run today? I'm concerned about a couple of things - firstly would my blood levels be back to normal and secondly could the cut in my head start bleeding again with additional blood flow?