Hey Carrie Ann,
How much experience have you had with biking regularly? From the sounds of things, it sounds like you are fairly fit, have biked for a good regular amount and this is a rather "sudden" onset of issues? This is the same bike as in TX?
What has the doctor and physical therapist said about this? Any previous injuries? Good arch/flat feet?
What is your inseam/height and what is the length of your crank arm?
Based on the initial problem and results of "the fix", I suspect the crankarm is much too long but it'd be good to hear more from you first.