i'm sorry to hear you're experiencing this. it sounds very uncomfortable. i'm sure when the doctor examined you he or she asked if you had injured the foot in any way. if not then the logical diagnosis would be tendinitis which is an inflammation of the tendons -- the fibrous tissue that connects muscles to bones. unless your doctor thought a bone was broken he or she would not order an x-ray. soft tissues like muscles and tendons don't show up on x-rays. if you are not satisfied with the diagnosis you could always seek a second opinion. i'm not sure what you believe might be wrong with your foot but there are other potential explanations for the pain you're experiencing including arthritis. wishing you well!
my doctor diagnosed the pain in my foot as tendonitis. no xrays were taken and i am questioning if that is the problem. the pain comes and goes and is intense. when it starts the vein on top of my foot to my ankle bulges. the pain is mostly in the top of my foot from my big toe to my ankle and hurts when i am just sitting.