I went to kickboxing tonight and when i got home noticed that my left foot is painful.Must be from kicking the pads.It dosent hurt when i walk but if i turn it a certain way i have pain down the side nearest my little toe n towards my heel.What do you think it is and what would be a good way to try and heal it because i go to the gym 3 times a week and do kickboxn 2 times aweek so im quite active.