It started to hurt 7 days ago, I didn't hit my foot anywhere, but I walked A LOT that day, it would hurt a little the next day but not that bad, and now i can barely walk on it because i didn't give my foot a break and walked on it A LOT two days ago. Can it be dangerous? Should I wait another day (and wouldnt walk all day) and see if it gets better first?

Its not swollen or bruised