@raghav , my husband developed pre diabetes (which I believe is related to his CFS and not a true metabolic disorder, because it comes and goes - he is extremely lean and muscular and was athletic for most of his life, so the test results were quite a shock). He has/had insulin resistance and glucose intolerance. We bought several good home blood glucose monitors to determine how various foods and levels of carbs affect his blood sugar. Do you have one of these devices? If not, I highly recommend getting one, if you can, to keep track of your blood sugar.
Not being able to exercise is a really big problem, but I am convinced that you can prevent yourself from developing diabetes with some preventative care. The cryolipolyosis may remove some fat, but it won't prevent you from developing diabetes if you don't address your glucose intolerance.
I am pasting a part of a post I wrote about this on another thread, maybe you will find it helpful:
When my husband first found out he had glucose intolerance/insulin insensitivity, he started eating a very strict low carb diet to keep his glucose in check. Over time we saw that his glucose control became much better and even though he is still takes certain precautions, he can be much more relaxed about how he eats now.
In the beginning, he'd tried to not eat more than 30g of carbs per any one time. He was eating a lot more meat, vegetables, nuts, eggs, cheese, and the carb would be more of a small side, like 2 pieces of bread, rather than the meal being carb-based like a bowl of pasta. He also switched to eating smaller meals but eating more frequently. Instead of using sugar in his lemonade (which we make at home) he switched to stevia. In the beginning, he was testing his glucose A LOT try understand how things affected his levels, and we found that by increasing his fiber, he could eat more carbs and have better glucose control. Combining carbs with fat did not help at all. At nighttime, if he wanted to get through the night without waking up, he'd eat something high protein/fat but low carb, like some leftovers from dinner (stew) or some ham with maybe 1 piece of bread and nuts, or even a glass of full fat milk. Yogurt is another excellent snack, the unflavored kind has basically zero sugar, it's great for stabilizing blood sugar. Beef jerky and nuts and olives are our main grab-and-go snacks now.
Also, doing some kind of light exercise (like walking for 20 minutes) after eating has made a huge improvement in glucose control. If he checks his glucose after a meal and it's too high, if we walk for 20 minutes and then he tests it again, it's usually perfect. However, he's not always able to walk 20 minutes, especially if he's feeling crappy (and his glucose is more likely to be erratic when he's feeling worse or hasn't slept). During these times, he takes 1-3 teaspoons of apple cider vinegar mixed with water just before he eats and his glucose control is significantly better (ACV slows the digestion of carbs so glucose doesn't spike the same way).
Also, his glucose is noticeably erratic if he hasn't slept well the night before.
He went from checking his glucose probably 10x/day to now only checking it once it awhile. In general, his glucose control is fairly decent but whenever he's in a flare up/feeling sick/hasn't slept, then he has to be much more careful because that's when it gets weird.