Hi Cherise, the defination of a " Brittle Diabetic " is a person whos blood glucose level often swings quickly from high to low or low to high. Have you tried googling " brittle diabeties " you might can find some answers there. Also go to the American Diabeties Association.org they have a lot of usefull information there including find help with getting insurance.
I hope you can get some usefull information at these sites Cherise.
Maryb