Runners and people who know feet, please help: the outside arch edge of my right foot starts burning during exercise and walking.
I'm trying to be a runner, am on day 2 of Couch 2 5K-- I also walk about three miles a day total to and from work, but I'm not too sporty or unusually hard on my feet, and I always wear athletic shoes when doing any of the aforementioned activities.
In my old shoes, I had some arch pain that was getting increasingly frequent, particularly in my right arch; also, occasionally, the bottom outside edge (the outside section of my arch) of my right foot would burn and I'd have to stop walking to get it to stop. To address the arch pain, I went to a sporting goods store and got some new shoes-- the salesguy watched me walk barefoot and told me I have low arches and I pronate, and I bought these shoes
on his recommendation. Since I started wearing those shoes last week, I experience that burning at least once per walk, and about 20 minutes or so into the Couch to 5K. It's now been about two hours since my last run, and I can feel it very very faintly still on the side of my right foot.
Am I walking incorrectly, or am I not stretching something that should be stretched, or am I just plain wearing the wrong shoes? Are there terms I should be googling that will tell me more than my current attempts have? In my other shoes, it's the inside of my arch that starts to hurt; in these new shoes, it's the outside. I live a walking lifestyle (no car, no bike) in a walking city, and I don't want to be doing permanent damage to my feet but I'm not sure what to do next.