question: I have a swelling on the back of foot and it is very sore. It is just below the back strap when I am wearing sandals. I ve inquired if it could be plantar fascheitis (not spelled correctly) and have been told that I would have pain on the bottom of my heel and that is not the case. Please tell me what this might be and if I need to see a doctor and what type to see. Thank you. Alicia Peterson