Your pain could be caused by plantar fasciitis: Inflammation of the tissue in the sole of the foot from the front to the heel. It is often associated with a bony spur projecting from the underside of the heel. Symptoms are typically localized tenderness and pain that becomes worse when stepping down on the heel.
Ice can be useful in reducing the inflammation and anti-inflammatories, such as cortisone injections, can be helpful. Sometimes surgery is necessary if the spur is chronically inflamed.
Cushioned inserts can take the pressure off the spur.
Pain in the foot indicates that there is either something wrong with the interaction of the internal structure or with how the foot is reacting with external influences. The primary clues are how and when the pain occurs, and where the pain is.
There is lots of free medical advice available online. Some sites are manned by leading healthcare professionals and institutions while others offer a more informal free medical chat room service. They are a useful addition to traditional telephone and face-to-face services.
Listed below are some free medical resources you may like to consider:
www.webhealthcentre.com offers online consultations. You have to create a health record with details of your health indices (height, weight etc) and also your medical history. You can then proceed to the online consultation. Choose a speciality for your consultation, such as podiatry for foot conditions.
www.ukchatterbox.co.uk has a general advice forum where you ask for medical advice. While this is not manned by professionals, you may come across someone suffering from the same condition as you.
www.nhsdirect.nhs.uk has an alphabetical list of symptoms or a body map for you to identify the area of concern. This service is for people in England only.
You should also consult your own doctor for a professional diagnosis as he/she has access to your full medical history.