I think i pulled a leg muscle and every time i run it hurts really bad i tried to stretching but it hurts what can i do ?

Ortho eval needed: If the pain in your leg is not improving with time (1-2 weeks), you should be evaluated by your physician who may want to send you to an orthopaedic surgeon. A partial tear of the calf muscle (gastrocnemius) is a common leg injury that can result in activity-related pain due to a collection of blood (hematoma) within the zone of injury.