Ever overdo it on exercise and do so much you're sick? That was my husband today. I didn't get up and ride this morning. My excuse was that he was sick.
I did however do my weights. Lifted the same amount but later in the day and it felt a lot heavier.
I ate right all day, too. Even when I was tempted not to. But I didn't eat quite enough meals. You're supposed to have 6. I never get that many. It's too much for a woman, anyway. But today I only got four. I need to work on that more. MW are harder because I have stuff to do so much of the day.