Hi
@Tracie1212, Sorry to hear of your illness. I am surprised that your DSN has not already discussed a sick day plan with you as part of your diabetes education. I find the plan referred to by
@DCUKMod make good sense. It reminds me of a jingle I heard from a diabetes educator: "Never smile at a crocodile, And never stop your insulin".
In the past I considered myself lucky to be prescribed Levemir, which having a shorter duration (??24 hours) made adjustments much easier compared to what I have heard from those prescribed Tresiba.
As part of my experience and not as professional advice or opinion:
I recall the advice given me for children or myself with tummy upset was to avoid acidic things like OJ, and solids etc.
There are gastro preparations like Gastrolyte which are useful and the standby of flat lemonade (not lo cal or sugar free).
A glass of lemonade heated for say, 10 seconds in the microwave drives out the bubbles, or letting the glass stand for an hour.
Taking small sips often worked better than large 'gulps'.
Of course getting hold of your DSN a.s.a.p. is a priority.
I was told also that if I was having difficulty keeping fluids up and have gone more than 16 to 20 hours without passing urine that I would need to get to a hospital for i.v.fluids.
My Best Wishes to you for a speedy recovery