At age 63, having missed my annual physical due to COVID and ignoring obvious signs of polyuria and polydipsia, the results of my A1C being over 14 came as a shock. My previous readings were in the 5.6–5.9 range. Overnight, I went from a pancreas transplant surgeon to a type 2 diabetes patient on Lantus and metformin. Having been treating kidney failure patients from diabetes, it was a shock. I requested and convinced my endocrinologist colleague to prescribe me a CGM (Libre 2) in addition to a finger prick monitor. I knew I had put on extra weight and always had a sweet tooth, but the CGM provided valuable information about my own body’s response to various foods, exercise, and medications. After the first two sensors, I have used them only sporadically, but all my subsequent A1C readings have been less than 5.8.