I had this 8 or 9 years ago now, it was terrible and the worst pain I have ever had in my life so far !! I couldnt sleep and walking was excrutiatingly painfull, had it for a week or so and went to the docs who gave me something , can't remember what now ,
after another week it was no better so went to a sports physio who covered my leg in some oil like deep heat and massaged it so hard he bruised me , i went out of there thinking that was a waste of money , paying someone to hurt me bad, woke up the following day leg bruised but nearly pain free , the following day it was gone , If I were to have this terrible pain again I would definately go straight to a sports physiotherapist for them to sort it .