My headache lasted over two months continuously.
No idea why it started.
No idea why it stopped.
In the meantime I have completed the Honey Napkin up to round 13.
Rounds 11 and 12 needed two shuttles again.
I am starting to get used to this but I still tend to have a shuttle hanging in mid-air trying to get itself tangled.
It is almost too big to photograph in my usual place - on the tutoring desk with the lamp on.
It is about 22cm radius (or 44cm across) now and there are still 5 rounds to work.