Well, on a Wellness scale of 1 - 10 I've gone from about a 7 down to about a 4. Can't stop shivering, but I had to get up to clean up the kitchen so Mr Lisa could cook his dinner. Wish I'd done it earlier when I wasn't feeling so bad, but I'd thought I would be feeling better by now, not worse.
I now have a temperature of 101.6F and it still seems to be rising. I suppose one comfort is that if the symptoms are as acute as this then hopefully they'll subside quickly too, maybe 24 or 48 hours, so I can't get back to work and stop worrying about the pantomime.