Inflammation from the bursa behind the heel known as Retrocalcaneal Bursitis. Repetitive stress or friction in excess of the back of your heel leads to the bursa to swell causing heel pain and tenderness, swelling and ankle stiffness. Often associated with Achilles Tendonitis and Haglunds Deformity.   Joint Health and fitness https://cruzsyzbz.sharebyblog.com/34020445/the-ultimate-guide-to-ankle-pain-treatment-singapore