Lateral Side Left Foot Pain

I have a pain that starts on the lateral side of my left foot (not in the heel and not in the toes). Directly in the middle of my foot.
When I walk, pushing off to walk sends a pain from the lateral side of my foot, directly over the top middle of my foot and thru my ankle.
It’s been for about a week now. I can’t stand on my tip-toes (or ball of my foot) because the pain is excrutiating.
I’m limping now, and have looked at every website, but found nothing.