Well hot damn. To an uncultured ear, that was phenomenal. I've heard the piece enough to know there are bits here and there, but I'll leave real advice to any pros that stop by. With regard to overtrained hands: - Take longer breaks in between performing and/or reduce the amount you do when performing (which doesn't seem to make sense in this case). - Temperature contrast therapy: the technical way of saying ice baths (for your hands), keeping them in warm or hot water, etc. etc. - Massage them, DIY or a professional. - Make sure you have some food to keep you fueled while performing.
Thanks! I know that I don't show the dynamics behind the music, forte seems to be my default state and I'm losing timing if I'll focus too much on it. Not the best feature when playing Frederic "I'm going from pianissimo to fortissimo in three measures and make it seamless" Chopin all things considered ;). Contrast therapy seems like a good choice, I can actually type :P. And great point about breaks. Ever since I have stopped training sports like a madman I have too much energy and don't really have an instinct to make breaks anyway. Thanks for feedback and advice! :D