I've always wondered if when a person that has Type 2 diabetes ends up going on insulin, no longer producing any of their own,when medications no longer help etc. if they are then considered Type I?
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You are dead right, was blood teasted for type 1.5 AT MY REQUEST and even though I was a proven type 1.5 and orals were no longer working worth a damn had hell of fight to get endo to give me insulin. Finally had to have my GP join the fight, he asked why I was not on insulin when I gave him a copy of the blood test. Right now I am on Lantis & starlix but very soon will have to go on mealtime insulin and hope don't have to fight. I hope my CGM records will do the fighting for me.
Although Jenny's answers is one of the most accurate on this thread, the questions was not answered, can you change from Type 2 to Type 1, for which the answer is NO.
What can happen is someone with Type 2 can become an insulin injector thereby appearing to the uninitiated that you are a Type 1, but diabetes types cannot change.