hebe, yes it could be the heat and really high humidity we've been having or at least they help to contribute. I do think I started fatiguing from overtraining, I cut way back on mileage per ride after taking a nearly a week off and I've been comfortable and happy with shorter pedaling about and riding at a good pace but not going all out. I just increased mileage and hours by too much instead of incremental.

I also had a Dr. appt today for blood work to see if there is any underlying cause of the fatigue. We'll see what transpires. Nice to see you around the forums again! Hope all is well with you