I overdid things last weekend. A 10 k in the morning, then a walk through the woods to one of our local pubs for the first post-lockdown pint.
The run wasn't too bad, but I was only wearing sandals (and fairly flimsy ones at that) for the walk, with the result that I did something to my knee, or rather to the bit just above it. Then I was really stupid and did my normal Monday morning 5k.
Come Wednesday, I set off for that run, did the walk to warm up, then managed about five yards before deciding this was a really stupid idea. Turned round and walked home again.
The leg is much better now, but not 100%. I didn't run yesterday and I am not sure about tomorrow. I certainly won't be doing 10k. Grump, grump.