My ankle and Foot hurts really bad ?!

Ok so yesterday i started limping on my left foot i thought nothing of it until today it started hurting a lot more so i looked at it and i cant see anything wrong with it its not red or hot not swollen but it just hurts from my big toe and toe next to that up to my ankle and somewhat up my leg i have looked on the internet and cant really find anything so i was wondering if anyone has ever had this and is it ok or should i just go to the doctor they are still open for another 2 hours so if needed i could go in thanks in advance