Hi, repetitive movements, unaccustomed strenuous exercise or injuries can cause the pain described by you. Sciatica can also cause the symptoms described by you. There is back pain which radiates to the leg and foot. This can be caused due to spinal disc herniation, spinal stenosis and piriformis syndrome. You can try avoiding those postures and movements which aggravates your symptoms. Could try cold or hot compress for relief from pain. Discuss these options with your doctor when you happen to meet him next time. In the meantime you can take OTC Ibuprofen pain medication. Ensure to take this medication after food to avoid gastritis. Regards.