Did some cross training today. Just over 20 minutes on a stationary bike which was very boring although it was not very easy and I worked up a good sweat. Decided to do a little bit of running also so I did 5k on the treadmill. The top of my left foot is bothering me a bit. I had this happen once before from lacing up my shoes too tightly and it got better by itself. I'm keeping an eye on it, hopefully it's not a stress fracture.