Thanks a lot for discussing your case here. I’ve been having a similar problem and couldnt figure out what exactly was happening. I sprained my ankle about a month ago and wasn’t a very painful one. I could walk immidiately with a slight pain. Now after a month I have absolutely no problem in walking, just experience a slight pain if I stand on my toes for long enough. My lateral malleolus aslo appears risen and it’s not swelling.
So I was just trying to figure out if I’m in same condition as you. Since I don’t think mine was a high end sprain is it still possible for fibula to rotate?