Localized pain in tibia. hurts to the touch. hurt while running but hurts still after running. 2 weeks later. still painful. x-rays showed nothing?

Stress fracture?: Sometimes runners get stress syndrome in the tibia due to overuse. If there is no fracture or only a tiny fracture it might not show up on an xray. An MRI or bone scan would be better able to see if there is evidence of tibial stress. You may have heard this condition referred to as "shin splints.".

Stress injury?: If you increased your mileage and/or intensity too fast, you may have a tibial periostitis and/or muscle strain. Focal pain over bone should raise suspicion of a stress fracture, focal pain over muscle-tendon is likely a strain or tendinopathy;diffuse pain over the postmedial tibia is likely a medial tibial periostitis. X-ray are usually negative, consider repeating x-ray or more advance imaging.