I'm experiencing pain at the center of my heel on the bottom of my left foot. It started 2 days ago some time after a 10 mile 5 hour hike (Mt Rose). I did that same hike 1 week prior to that. I'm planning on going up Whitney in 11 days and am worried that this might prevent my Whitney hike. I plan on doing a 6 mile hike Tuesday. Maybe I'll try a different shoe. The pain might be diminishing each day but that might be my imagination. Any thoughts or similar experiences?