Labs off with jardiance?

My doctor switched me from metformin to jardiance about 6 months ago due to family history of heart disease and also to help with a small amount b of weight loss. My weight is now within the norm but my labs have been off and my blood sugars are running high. At first my co2 was high but then repeat labs showed it at 20, which is barely normal. The 2nd set of labs then showed my bun as high. My average blood sugar (per the stelo gcm and verified with a finger stick) has been over 140. My doctor wants to wait and do repeat labs before changing the med. Has anyone else had this experience.and what did you do?