If you have heel pain when you first put your feet to the floor in the morning, or when you go to stand after sitting, you may have Plantar Fasciitis. This is a painful inflammation of the bony attachment of the plantar fascia that supports the arch of your foot, and is often caused by inadequate foot support, and poor biomechanics.
Treatment involves biomechanical correction with foot orthotics, ice, stretching the fascia, massage, dry needling, taping to unload, and sometimes night splinting, but in at least 9 out of 10 cases, resolves completely. It can take up to three months even with appropriate treatment.