In July I suffered from plantar fasciitis, had a cortisone shot and 2 days later fractured my heel. Was in a cast for 6 weeks, and now in November I refractured the same heel, same area. Had a bone density test done, score was 0.9, no signs of osteo. Can anyone give me a reason why I rebroke it and what the future is for my heel right now. I am trying to do exercises the PT gave me but within the last 2 days my foot is extremely swollen and I can now feel "grating" when I try and exercise. Due for an xray in 2 days. Is it possible I have gone from a non displaced fracture to one that has split?