Yuk. I managed to grind my way through one of Robin's brutal kick sessions last Tuesday morning, but by lunchtime I was feeling horrible, and by Thursday, I had no voice, a rattling cough and a thundering head. It's now Sunday, and I still sound like a dalek and feel completely drained. So, no swimming for me for now, which is all very dull.
So for now, I'm trying not to get into a panic about the training I'm missing, and am following the excellent example of Oscar, for whom resting and not getting worked up is an art form ...