When I was first diagnosed with type 2 diabetes two years ago, I struggled quite a bit. I had to change my diet and reconsider my exercise regimen, and I was suddenly made aware of data that had never existed in my world before - A1C and blood sugar numbers swirled around in a confusing mix that I not only had to track, but also keep on target. For me, the hardest of these was learning to check my blood sugar. What do the numbers mean?