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.