Hi, this probably sounds like plantar fascitis, which is an inflammation of the fascia in your heels. You can give yourself some rest, apply icing twice a day in the painful part, elevate ur foot on a pillow in the night. Good shoes with plantar arch support is a good idea. If it doesn't settle, we'll need a x ray lateral view of ur ankle, to look for micro fractures or calcaneal spurs. So consult a pain physician or an orthopedician. Good luck.