OK. I saw the podiatrist and got a shot but, it wasn't cortizone and I don't have tendonitis. The MD thinks it's either a ligament or nerve problem induced by my very narrow and curved feet. I also managed to find shoes today that, well, comfortably stay on my feet! I will use them for walking and will change shoes when I get to the office to something dressier. Initially, the pain was gone when I left the podiatrist's office but, after some walking, it came back so badly that I had to take a cab home. I've rested it since then and the pain has subsided. Hopefully, tomorrow morning when I get out of bed there will be no pain. My fingers are crossed!