I would strongly recommend that you go to see your doctors
">primary care doctor about this issue. It sounds like the pain has been going on for a while, and it is not getting better. This means you need some help figuring out what might be the cause, and a physical examination by your doctor is the best way.
Based on the symptoms that you are describing, I think one likely possibility is that you are suffering from plantar fasciitis, which is an inflammation in the connective tissue in front of the heel on the bottom of the foot. This condition causes exactly the kind of pain you are describing. It is often associated with prolonged exercise and with flat arches. It can sometimes be fixed by getting proper arch support for your shoes (such as with orthotics arch inserts). There are also several stretching and strengthening exercises that are specifically for plantar fasciitis, and your doctor can show these to you, if the diagnosis is confirmed. Sometimes, it can be helpful to take anti inflammatory medications like ibuprofen, again only with input from your doctor.
Other causes of heel pain might include tendonitis around the ankle or bone spurs in the heel bone, which are often treated in much the same way as plantar fasciitis.
Please call your doctor's office for help!