Good morning,
@MihaiM , and I hope your Christmas season'll become merrier as you learn more about diabetes. There's a lot to unpack here, but just so you know, there's a lot you yourself can do, and had already started on.... I've got my tea, my husband is still sleeping, so let's get into it while we can!
Your prediabetic numbers went into the diabetic range because you
didn't change your diet. Diabetes is a progressive condition unless you actively try to stop it in its tracks, be it through diet, medication or a combination of those two. The reason the numbers went up wasn't because anything changed at that point, but because there were no changes. Natural progression of the condition, which is a bummer, because a lot of us never knew we were prediabetic, (often not bothered to be told until the ship has sailed), and you had a chance there... And no-one acted on it or informed you to do something. But you know you're diabeti now and you're asking the right questions, so who knows, this may get licked yet!
Your nurse was right about the low carb diet, sort of. But you gain weight because you have insulin resistance/developing diabetes, you don't get diabetes due to the gained weight. More often than not the goal is to lose at least 10 percent of the body weight (which in your case would be 11 kilo's), but there's no guarantee that would bring on remission. Low carbing would likely achieve it though. And more weight loss to boot. Stopping beer was a good move, as there are a lot of carbs in there. (It's called Liquid Bread for a reason) Some wines might be a bit carby, but quite a few of them shouldn't be a problem.
There are supplements that increase insulin sensitivity some, like berberin which works a little like the drug Metformin would, but the main thing would just be low carbing. You're insensitive to your own insulin because you make so much of it. If you ask your pancreas to produce less, your sensitivity should improve as you're not overloaded on insulin all the time.
You lost 3 kilo's rapidly, you had severe headaches and your skin turned flaky. That is likely all due to the low carbing. And it's a shame you stopped, because you were well underway to getting through the worst of what is called carb- or keto-flu. Carbs retain water, so when you drop the carbs, you rapidly lose water-weight. You might have noticed you were weeing for England, so to speak. When you lose a lot of liquid in a short period of time, your electrolytes flush out along with them, causing headaches, fatigue, muscle weakness, dehydration (explaining the flaking skin), dizziness, joint pain, that sort of thing. Would have been easily solved with bone broth, coconut milk/water or, quite simply, electrolyte supplements. This transitional period lasts something like two to three weeks, and then your body finds a new equilibrium, and the problem solves itself. You were about halfway there from the sound of it, and if you want to low carb, you'd have to start over. But do it with supplements at hand (magnesium, potassium, salts etc, all that good stuff.), and paracetamol too.
7,2 on an empty stomach does sound like Dawn Phenomenon, and the only thing you can do about that, besides start taking something like metformin, is, you guessed it, going low carb. Carbs turn to glucose when ingested, you already know that. But what you can't use to burn off -and that is a lot, because with insulin resistance, burning it off doesn't quite happen as it should- it gets stored in the liver, usually as fat cells. In the morning your liver wants to help you get your dayu started, and because you're always high, it thinks that that is your "normal". So it releases more glucose than you actually need. It takes just about forevere to get those numbers down, but should you tackle diabetes through low carbing, there'll be less to no glucose to store as there won't be too much in your system, and the stores in your liver eventually get depleted, which is a good thing. Be ready for it to take a half year or so for that to happen, though. Better thing'd be to test around meals and see what happens there. If you test before a meal and 2 hours after, there should be a rise of 2.0 mmol/l or less. If that's the case, your body could deal with what you've put in it and there's no excess glucose going around. No excess, no storage, nothing to dump in the morning, lower dawn phenomenon.
Skipping breakfast is fine, and going to 3.3 is perfectly normal for someone who is NOT on blood glucose lowering medication like gliclazide or insulin. It's when you see numbers like that when you're on medication (or have a different condition) that you have a problem, but if not, no worries. Plums, by the way, are decidedly not low carb.
There are three macro-nutrients: Fats, protein and carbohydrates. You cut one, you up the other two. If you cut both carbs
and fats, you'd be on a crash diet, get malnourished and basically collapse at some point or other. (And for a diabetic, fats aren't a problem, they're a helper actually: they don't raise blood sugars and can help avoid a spike if you do eat carbs, by slowing down the food uptake.) It's not something that is doable long term, as fun things like scurvy aren't something squarely from the Golden Age, you can get that sort of thing now, still. So pick a macronutrient to cut if you want, but never, ever cut two. Carbs up blood sugars, fats don't. So while conventional advice is to cut the fats, you're dealing with a metabolic condition where it's the carbs you can't process. Fat isn't really the problem here. But if you want to find out and experiment, see what diet your blood glucose responds to better, go ahead, who knows it might work for you, as we're all different. What is true for one, might not be true for another. But please, don't mix a low carb and a low fat diet. I can't stress enough how dangerous that is for your health.
Cortisol is a hormone you really need. And yes, it can trigger higher blood sugars. Sometimes we have to do or take things that have an adverse affect on our glucose levels, but it can't be helped. (Some people absolutely need steroids and such, there's no way around it). If you can't affect one component of what raises your blood sugars, influence that which you can control. Usually, diet.
I think that covers the bulk of it... I know it's a lot of low carb, low carb, low carb, but it just happened to be the answer the bulk of the time, haha. Sorry. In the end, you decide what you do with all this. Go for portion control like your doc suggested, until the course, (And a Desmond course is very much hit and miss, some are outdated, some are on the cutting edge... You never know until you go! If they come up with the EatWell Plate, they're off the outdated variety, alas). Try low fat rather than low carb. Try low carb but with the aid of supplements so you don't get dehydrated like you did before. Whjatever you do, test. So you know what is working for you. Honestly, when I started out with my own experiments, I thought low carb was absolutely bonkers, until my meter told me it was working. And my blood glucose was up in the twenties, daily, prior to that. Sometimes you just have to take a little time to find out what works for you.
Good luck!
Jo