Anyone experienced sudden pain in arch of foot while walking?

Have it evaluated. Your pain could due to trauma (fracture, sprain, arthritis, inflammation), infection, metabolic conditions (gout), poor circulation, musculoskeletal or biomechanical abnormality and different neurologic conditions (neuropathy). A thorough history and physical exam and possibly some laboratory and radiology exams are needed to determine the exact cause. The treatment varies depending on the cause.
Swelling? stress fx? To receive an answer that will be more helpful for you , you need to give more information...Your health status, any problems such as gout, diabetes or blood pressure concerns.You should state how long it has been a problem and what you do to make it feel better.Also tells us what it looks like..Is it discolored, swollen or point tender.The more you tell the better the answer.