I need help diagnosing my foot injury. It just started hurting at the end of last week. I can walk and run without a limp. It's pretty tender after hard efforts. The pain is on the inside of my right heel, and it hurts to press on it. It feels kind of like a burning sensation or a bruise. I plan to take 4-5 days off to see if it heals. Has anyone had anything similar? The day before it started hurting my calves were really tight, not sure if that has anything to do with it.