Diarrhoea.

Poor you. Have you ever been given a copy of sick day rules?

Try and keep fluids down and If you're finding it difficult to keep water down because you're vomiting or have diarrhoea, try drinking small amounts more frequently. You must try not to become dehydrated. Keep measuring your blood sugars If they become too high/low then get in touch with your G.P. Surgery (out of hours) or ring NHS 111.

This article is from DUK

http://www.diabetes.org.uk/Guide-to-diabetes/Living_with_diabetes/Illness/

Usually is someone is vomiting the rules are clear but there does not seem much about the diarrhoea.

PS Did the gastroparesis get sorted.

Try and make cornflour make light but rig Dr if it don't get better he will help good luck