Sounds like you are suffering from acute Plantar fasciitis. I have had this problem in the past. It could be due to your wearing insoles with a slightly more supportive arch plate than you have been used to. Many foot/gait problems are corrected with the help of supportive orthotics, however they can really hurt the feet at first. This is because the bio-mechanics of the foot, knee and hip are being better aligned and so have to slightly change.
I had a pair of orthotics specially made some years ago after suffering Achilles Tendon/Calf problems. At first it felt like I had a golf ball under the arch of my feet, and I had to keep removing them. Eventually I got used to them as my feet corrected and after a few months they became comfortable.
Sounds to me like your arches had been slightly stretched by the Superfeet and are inflamed as a result. Bear with them and your feet will accept the shape, but it may take several walks before this happens.
http://orthopedics.about.com/od/footankle/a/fasciitis.htmDave.