Hi. I at one time thought I had tarsal tunnel too. Anyhow my first emg test showed very little then I had one 3 months later and also an ssep which they do when the emg test doesn't show much and it turned out I had pn. I think sensory but they don't think for me that is what is causing my extreme pain and I may also have rsd. I would try to get a repeat of the test and call and have those previous sent to you. Also I was wondering if you could have rsd?Is your pain severe in one are like where the tarsal tunnel is?