I'd recommend going to an independent running store in your area and speaking with a person there.  First of all, they usually have wide widths. Plus, the staff are more knowledgeable -- they'll look at your feet, watch you run (or walk if you don't run), determine whether you need more stability or motion control or what. A lot of times they will let you run outside or on a treadmill as well to really feel them.

And ice that Achilles if and when you can!

Good luck!