Yup it is possible to have 1 and 2. Apparently its called 1.5 in the medical world. This is what i apparently have as they make me take metformin as well as my insulin. However other than dodgy bowels i never notice any difference between me taking my insulin with metformin or me taking my insulin without it.
You have possibly answered my question about problems im having with my control and weight gain. As im getting fatter im having to take more and more insulin. At the moment i take 30-40 units of novorapid with each meal and 120 units of levemir at night at the amount is just increasing every month. As ive heard novorapid makes you gain weight i think im in a bit of a viscous circle at the moment.