DS is 2.3 and has chicken pox - first spots came out on Sunday. Seems to be progressing normally, not too ill with it, and was looking much better the last couple of days.
Now he's suddenly really tired and miserable again and is complaining that one of his legs hurts, around the knee.
Should I worry? He was playing fine this morning but then got really tired and miserable, no appetite for lunch and crying in pain in a way I've never seen before.
Why do these things always come on on a Sunday?