Hi
Welcome to the MedHelp forum!
Plantar fasciitis, arthritis of small joints, diabetic neuropathy, hypothyroidism, high blood pressure, over weight, deep vein thrombosis, wrong foot wear, gout, etc are a few causes of painful feet.
Do discuss this with your doctor and get yourself examined. You may need to consult an orthopedic specialist or a rheumatologist. Take care!
It can be caused by several things, the type of shoes you wear, how much you walk, and how much weight you carry.
JayJay
Look into plantar fascitis....
http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0004438/