I sat on the couch with a friend yesterday watching videos for a few hours, and when I got up to leave, my foot hurt so bad that I had to limp my way home, and I woke up today and it still hurts just trying to bend my toes back and arch it kinda. I know I have fallen arches, but I didn't step on something weird or strain it, this literally happened while sitting on a couch. How the fuck does this happen and how do I fix it