Started having a problem with my right Achilles toward the end of the summer, even after just a short run. So, I've taken the last couple of weeks off from running- still doing cycle classes, lap swimming, strength, so still working out, but no running and it has been much better. Today I did a trail run, figuring the softer surface would help, but nope- pain started right away. Ran for 45 mins, but it hurt the whole time. How long am I looking at before it goes away- 3 weeks? Longer?