Retrocalcaneal Bursitis is present behind the heel, Pretty much together precisely the same location as your Achilles, which could make it easy to confuse the two. To add your physical paper receipt, basically choose a picture of it with all your camera or phone. You may also try out https://felixoczyw.uzblog.net/a-secret-weapon-for-conolidine-for-ankle-pain-after-running-52204400