Joint/Muscle injury?

I have developed a pain which started yesterday with minor swelling and terrible pain at the joint at the base of my big toe. The pain and some tightness followed the muscle into the arch of my foot and part way over the top. By the end of the night that same ankle felt funny. This morning the tightness has spread up the inside of my calf just to the side of my shin and up the outside of my calf started right above my ankle.
What did I do?
Joint/Muscle injury?
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