Hi there I understand your concern... There are many reasons for foot pain,some of them are stress fracture,extensor tendinitis which is inflammation of the tendons on the top of the foot,ganglion,gout,Sinus Tarsi Syndrome,
diabetes, peripheral neuropathy etc...so detailed examination and investigations necessary to diagnose and treat the condition properly...I would suggest you to consult nearest orthopedic surgeon they will do the needful.