Originally Posted by
gregf83
Have you had an EKG? Your symptoms and background are more consistent with Afib or some other heart condition than overtraining. When in Afib HR monitors don't read properly.
I rode with a friend who dealt with Afib for about a year before getting it fixed with ablation. He would occasionally enter Afib during a ride and it would be like a light switch was turned off. He could still ride but at about 50-70% of his normal power. Something to investigate with your doc.
Have an appointment to have one run. My symptoms (and all the signs that I ignored leading up to it) are right in line with OTS. But the heart rate part has been seemingly unique to my case.