if it gets worse go see a Chiropractor, best money i ever spent, had an accident and after a year of going doctor went to see a Chiropractor on my own advice turns out i had twisted my pelves, and spine and parts of my neck had seperated, i was only in there 2 hours and she knew what was up with me fixed it with in 6 months,
u can tell if you got back probs or pelves probs, by your shoes, if one of the under soles is wearing out quicker than other u might have a problem, as your body will transfer all the weight to a good leg when walking so you aint in pain