Answer:
Found this off of google, "Heel pain is most often caused by plantar fasciitis, a condition that is sometimes also called heel spur syndrome when a spur is present. Heel pain may also be due to other causes, such as a stress fracture, tendonitis, arthritis, nerve irritation or, rarely, a cyst." Sorry if this was not what you were looking for.
Hope this helps, Have a great day, stay safe!
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