Hi Kate,

Have you seen a good physio? someone who has assessed your ankle biomechanics etc? If you've had an Wikipedia reference-linkMRI then it should show the sesamoid bone seen in fabella syndrome, it also should indicate some form of fluid that you'd expect with a tendinopathy... Maybe there was a small tear higher up and not in the MRI scan but expect some bruising possibly... I'd make sure you get your ankles checked to be sure that your biomechanics are all good and the problem isn't coming from there.

Good luck.