If it's been a while since you've been on the ice, it's normal for your feet to hurt at first. Walking around the store is not the same as being on the ice. It should go away after a few sessions. I had the same problem when I got on the ice in my figure skates for the first time in a year. And these weren't new skates, they're broken in. But after so long off the ice I was in so much pain after 15 minutes I had to get off the ice. Your feet just need to get used to skating again.