[Closed] why does my foot hurt?

I was away two weeks ago, walking around the cobbled streets of Lviv in leather-soled dress shoes. At some point, the top of my right foot, just above the big toe started to hurt. Sort of a dull throb that would go away when I was in bed, and took about an hour to return the next day after I put my shoes back on.

Two weeks on, it still hurts, but only when I have walked alot, or held my foot in one position for too long, such as when I am sitting at the desk.

I wouldn't worry about it, but when it does hurt, it hurts alot.

Could I have broken a metatarsal without realising it? If so, how could I have done it just by walking? If not, any idea as to what's wrong with me?