About two years ago I had intense PF in both feet for over 3 months. It was really depressing because the main exercise I truly love is walking. I spent hundreds of dollars on those crazy Z-coil shoes. I had no idea at the time that it could be TMS. I did meet a number of people who had it in the past and it had gone away on its own and I found that very encouraging. Oddly enough, what I ended up doing very much fits in with the TMS protocol but I did not realize it at the time. I simply refused to give up on walking. I had stopped for months and I truly missed it. I was living in Houston at the time and I started with resuming 10 minute walks. It was painful but I discovered it did not make the condition a whole lot worse. Then I slowly increased the length of my walks and started riding a bike. I wasn't really expecting it to go away, I just did not want it to control my life. Eventually it faded away. Now I walk about an hour a day, no foot pain and I love it. Sometimes I get up and my feet hurt but I just ignore it because now I know it is TMS. And it quickly goes away. You did see a doctor and it doesn't sound like they found anything. I certainly have experienced excruciating foot pain that clearly was caused by TMS so that is a possibility as well.