For a sudden change, I think I would check with a doctor to make sure there's no underlying problem. Though offhand, I have no idea what kind of problem it would be. But I think if it were related to diet or lack of sleep, you'd see the effects all over and not just one part of your body.
- Gray Trek Madone 4.7 road bike, mystery crack in top tube repaired by Calfee, Bontrager Affinity RXL saddle
- Red Trek 6000 mountain bike, Bontrager Evoke WSD saddle
Gone but not forgotten:
- Silver Trek 2000 road bike
- Two awesome and worn out Juliana saddles