Bilateral Achilles Tendinitis

© Mayo Foundation

That's what the doctor says is causing the pain in my heels. Per the Mayo Clinic website:

Achilles tendinitis is caused by repetitive or intense strain on the Achilles tendon, the band of tissue that connects your calf muscles to your heel bone. This tendon is used when you walk, run, jump or push up on your toes.

Cuz ballet dancers don't jump or push up on their toes, right?