Bleeding within 5 minutes of getting out of bed: a new personal best

Nothing in this world has been able to injure me. I've been attacked sixish times, stabbed once. It was fine. No scar

But for a while, years ago, I found myself mysteriously bleeding each day, from a new part of my body. Sometimes people would have to point it out to me. Perhaps I was careless. Perhaps the mundane horrors of the world *can* pierce my skin. Or perhaps there is another explanation...