I learned if I have little interest in riding a couple days in a row, I need to look back at my training. If I ignore the lack of mental interest and continue pushing it, the physical symptoms of elevated pulse, restless sleep, and anxiety come next.
I once dug myself self into a deep training hole running. I worked hard for a marathon and noticed my performance kept improving. I skipped that marathon and kept training for another in six weeks. I did the same with that and finally did the third after another six weeks. I was so burned out, both mentally and physically, I barely remember the race. My time was awful and everything about it was a foggy blur. It took a couple months to recover