No, glucophage/metformin has absolutely nothing to do with the pancreas. It works on the liver, keeping it from dumping glucose into the system. It will not cause the pancreas to burn out.
Some doctors are so stupid, but not their fault entirely. They should be required to update just like teachers do. They just do not have time to read the latest developments.
I too am on Lantus and Metformin! As long as I take the meds as Rx'd I am in tight control, but must eat to match the amount of Lantus the doctor said to inject! Thus gaining weight!! I am approaching the Blimp Stage again! Cannot exercise enough to keep the weight off. Start going hypo mid afternoon - 40 (2) - and that isn't fun either!
Try to change base insulins to the Levemire! or change the amount needed to very minimum.
No, type 2 is glucose impaired and type 1 is no activity from pancreas at all. Two very different diseases even if they carry the same name. And one doesn't change from type 1 to type 2, ever! There is a type inbetween that is a combo of the others, and is treated more like type 1.