What causes pain in the heels of my feet?

Heel pain. People usually describe pain in one of two places as "heel pain". Pain on the bottom is typically due to plantar fasciitis (www.Drmarkgalland.Com 1/16/13), while pain on the back may be achilles tendonitis. Please let me know if you have any further questions.
Plantar fascitis. Most common cause of heel pain is from plantar fasciitis, a pull/sprain of the plantar fascia from where it attaches to the heel bone on the bottom on the foot.
Depends. If pain is to the bottoms of the feet the most common cause is plantar fasciitis. The most common cause to the back of the heels is achilles tendonitis which may or may not include a 'pump bump.'.