Barefoot and happy
Creator of RunForth | @robraux | shodless.com
Certainly Something...
I'd say it's a sign of ramping up too fast. I got blisters last summer when I was rushing things. Since starting running again in January and running more cautiously I haven't gotten any blisters but have slowly built up a few calluses. It's where the seems are on some of the toes for me as well.