OUCH!!! I have a touch of PF off and on the last couple of years but with stretching it has gone away pretty quickly.
I have run in my new pair of Mizouno Alchemy's 4-5 times now and I know of at least twice I couldn't walk with out limping heavily. I had to skip a couple of runs last week due to it and I may not get to run today. I ran in the Alchemy's yesterday and couldn't hardly walk this morning. I am trying to stretch it out as the morning goes on so hopefully I can get out at lunch. The weather is going to be perfect for a lunch time run- now if my heal will cooperate!