I've been doing Couch to 5K since January and had managed to get as far as running for 35 minutes non stop but started getting achilles pains a few weeks ago. Last week after going out walking I got a sharp pain under my right foot that has made it really painful to walk all week. Saw my podiatrist today who said I need some new orthotic insoles for my trainers - I've not been using the ones I've got as they're too stiff and don't feel comfy to run in. He said I'm close to causing permanent damage due to my over pronated feet stretching my tendons when I run. So now I've got to wait till the pain goes, then get used to some new insoles, which could take up to 12 weeks in total.
I feel pretty disheartened as I'd got over the stamina hurdles but now feel let down by my feet! Anyone any ideas on how to keep the fitness up until I can start all over again? Has anyone tried nordic walking as that is supposed to be good for aerobic fitness?