I've never experienced anything like this.
Coach Jamie told me to take it easy this week to recover from Vineman 70.3.
Now, I've done marathons, and I'm sore for three days, but after that I'm up and roaring, back to my usual workouts.
Not this time.
I raced on Sunday for almost seven hours of swimming, biking, and running. Then, on Tuesday I went to my usualy bike/run workout. I got on the bike, and whoa, I definitely did not have my usual strength.
Then I thought I'd be fine by Wednesday, the day I do speed work at the track. Not so much. I was more tired and far slower than my typical speedwork pace. So instead of the usual workout, I mostly ran/walked around the track on my own.
I asked my coach how long -- he said to give myself a week and a half. I've taken today off completely from working out, and I'll swim tomorrow.
Maybe by then I'll be back to my usual self.