The sickness wasn't mentioned in the original letter for the appeal, but I wondered if we should say about it during the actual appeal.
I think the head's advice is basically sound, and that you shouldn't go out of your way to raise the matter.
However, if you're asked "How was she on the day?
" or something similar (as is very possible), then you should answer truthfully. The point you need to get across is extreme anxiety, not
sickness (although sickness will need to be mentioned to explain the background).