Hope I'm in right place? I usually walk 3/4 miles 4 times a week. Went for a walk few days ago but felt a sting at back of knee. Had a mile to go to get to car, kept walking though some discomfort. Been walking on it, going shop n stuff up till yesterday, thought I should rest it. I've never had this problem before. Not sure what it is or what to do.
If I was home I would go to my doctor but I am in Spain.
I'm unsure if I should go to doctor here or just rest up?