Is heel pain related to diabetes?

No. Heel pain may be secondary to calcaneus ( heel bone) spur ( hook of bone), sometimes plantar fasciitis ( inflammation of the fibrous tissue on the bottom of your feet) may cause heel spur , diabetes may cause lost of sensation of feet, but most likely not heel pain.
Depends on the cause. 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, diabetic neuropathy, infection, tendonitis, arthritis, stress fracture, nerve irritation, retained foreign body, bone tumor, or a cyst. Have it evaluated by a professional and get the appropriate treatment.
Maybe no, but see Dr. A diabetic with any foot symptom should be examined because diabetic feet have difficulty healing. Heel pain can come from injury, such as jumping off a fence. It can come from overuse, such as hiking 5 miles. There can be irritation/inflammation of the arch area of the foot, or at the achilles' tendon from the calf, both of which are connected to the heel. Sometimes there is a bony heel spur.