You said your appt is Tuesday. What if you call tomorrow and reschedule that appt for next week instead? Give the OTC arch supports a chance to do their magic? Maybe you'll go to 99% relief! (but 80% is fabulous as it is!)

If the OTC insoles solve your problem, that would save you the $$ of going to the podiatrist. And if they don't after a good week, then you'll have more info for the podiatrist to work with. ("at two days they felt like this, at 5 days they felt like this, and this is still sore, and that hurts at the end of the day" all valuable info!)