This is gonna sound kindof odd but I had a lucid dream where i was playing mario kart (damn was it real too) none of this is odd except in my mind i was gripping controllers and my arms felt really tense and when i woke up my biceps and arms ached so badly for about a week. The other weird part is that my arms ached at the very core of the arm almost not even muscular but rather neuronal or something.

can anyone relate or hypothesize?