Yes. Sounds like a classic case of being a little overtrained, or quite simply, you're doing a little more than your body is able to recover from adequately. Just back it down a little and everything will be hunky-dory. At the same time, you might be undereating or under-resting.

Best advice is "ride when you want to, not when you think you should". Your body will tell you when you're doing too much.