Yes, I have another sickness. As well as having severe "Hard to get out of bed when the clocks have turned forward and it's the first day of term four syndrome" (yes - of course it's a real sickness to any of you wondering otherwise!!!) I also have have Purpleitis.
I am sure it won't last long, or maybe it's the sort of thing thats keeps rearing its head when you thought you were over it. Either way, no cause for alarm, I shall battle through.