Hi all! I am just starting a conservative (28 week) C25K program. I am wondering when I should get fitted for running shoes. The first month is all walking and then gradually add in running starting the second month. It is still mostly walking until the 4th month, at which point it changes to mostly running. My concern is that I am very overweight (about 100 pounds to lose), and I think the way I walk/run will change as I lose weight; I don't know if my foot strike would change though. Should I get fitted now or wait a couple of months? I am concerned both about cost (DH was laid off in December) and about preventing injury. Thanks!