If ill and not eating, you should check for ketones...............even if your not on much insulin.........
there are different rules to deal with them if you do have some so its best to find out what rules your team use..........
DAFNE teaches you to test every 2 hours for ketones and if you have some:
you take 10% or 20% of your total previous daily dose, and this is on top of your meal time stuff, if your managing to eat.....
they really work..........
a lot of people don't have the faith and cant understand how they can take insulin with no food but still not go low.........
see what your team say....
get well soon........