My PF, was bad as soon as I walked on it, the more I walked it seemed to get easier!!! But if I stopped and sat down for a few minutes then when starting to walk the bad was awful again!
I remember lying on the sofa one afternoon, the window was open(close to my feet) and there was a gentle breeze coming in - the pain on my feet was so intolerable it was untrue!!!
Will he give you a steroid injection??
Have you tried insoles in your shoes??
Try not to wear slip on shoes, I was advised not to wear flip flops or slip on shoes or boots.
If it is PF you have my sympathy, it is so painful - I ended up have my foot/leg in plaster twice (6 wks both times) had special insoles made for me, had night casts made, steroid injections, ultra sound/laser treatment, exercises.
The pain is just awful - touch wood I have not had any symptom now for 3 years!
Please please keep badgering the Dr, ask for physio.