I have been suffering with planter fasciitis in my right foot for a few months. Is it possible that my some are not helping? After my last marathon I took a fairly large break from running and then came back but in the same shoes that I had trained and run the mara in .... That's when I started to suffer with my foot. I am sort of reluctant to change my shoes if it's not going to help, but at the moment I can't run without pain. Anyone else had a similar problem?