via Strava comment,
"stress fracture, among other things. Happened through a combination of building up too fast after Chicago(mileage, workouts, and heavy weightlifting at the same time), running a marathon with my wife, not being diligent with nutrition(probably was underfueled heading into the marathon with my wife) and lack of proper sleep. I think I could’ve done 3 or 4 things and been fine for a few weeks, but lacking in the 2 most important ways to recover(sleep and nutrition), starting to build up 3 things in a short period, and finishing a marathon in the same week was too much at once. It’s easier to make sure I’m dialed in with enough calories and sleep when I’ve been in the habit for weeks, but coming off a break it’s easy for me to forget to eat or sleep enough."
Walked 6.5 miles at 15% incline on treadmill today @ 14mins per mile. He has been mostly swimming including multiple 10,000 yard swims which is insane.