My story is similar to yours - are you T1 or T2 (or both)? It's only been six weeks since my T1 diagnosis, and it's still shocking to think about.
Unfortunately, I didn't really have any symptoms other than a mild increase in my fluid intake, so the doctor was shocked when my annual blood work came back with BG levels (18 hours fasting) near 500. He called me ASAP (begging the receptionist to track me down in a building with 10,000 workers), and had me come straight to his office. It was right after I'd eaten lunch which included a bunch of pasta and bread, and my BG numbers when I got to his office were around 900. My doctor's exact words when he saw the results were "holy shit".
I stayed at the doctor's office through the rest of the day and into the evening so he could monitor my BG as it got further away from lunch time. Luckily I wasn't in DKA and the rest of my numbers looked okay, so he sent me home at about 8:00 PM with a script for insulin (Lantus and Humalog). They didn't have any pens in the office, so he couldn't show me how to use them. Instead, they demonstrated the finger prick and blood testing and told me to get a demonstration from the pharmacist. Luckily, the pharmacist knew a little about how to do the injections, so he was able to show me the basics (and was also cool enough to keep the pharmacy open until I got there). I went home and figured out how to do the injections (which are far less painful than the finger pricks).
My first 14 days, my average BG was over 200, so I changed to a low-carb/high fat diet. Since then, my 14 day average has gone down and yesterday was under 100 for the first time. In some ways, I'm grateful that I'm Type1 - there's no uncertainty about it - I'm insulin dependent, and until a cure's found, I will always be insulin dependent.
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