Hey I haven’t been diagnosed yet, I am also a type 1 and was taking metformin too.. I was thinking the bloating and wind issue is due to that but they have changed me to a slower release metformin so it’s made a huge difference but I still have issues.. I can completely stop taking metformin because I was insulin resistant few years back which made thing much worse.. maybe I should ask my gp to send me for some tests, but there’s not much information about it online as in how it’s tested etc and treatment