The ache in my toes was subtle at first. I came off of a multi-pitch climb in California, unlaced my shoes and noticed a new tenderness in my joints. But I was rock climbing. Didn’t something always hurt while I was rock climbing? Cramming my feet into narrow blocks of rubber was just part of the process. Over the following weeks, I alternated between taking rest days and partaking in light activity to give my feet the chance to recover from their ailment. But it wasn’t long before I was back on the wall, exploring the limits of my body. Early on in my life, I learned that if you just put your head down and move forward through the pain, things usually get better. In my experience, doctor’s visits…