Hi Sarah, and welcome,
Plenty of us here with PCOS. When it was discovered I was told about potential problems getting pregnant, but no-one bothered to mention resultant insulin resistance and potentially diabetes. (It also explained why my legs resemble a gorilla's!). Guess the bloke's priorities lie elsewhere. I was massively overweight and the hospital's dietician had put me on a high carb, low fat diet, which made me even bigger... To which she just gave me a shrug and told me I must be one of those people who just can't lose weight, and to just accept being massive. If anyone'd bothered to check my HbA1c they might've discovered I was diabetic even then, but it took another ten years or so. Since being diagnosed, I did lose quite a bit of weight on a low carb diet, lost more when I moved on to keto. But as I got older and I lost my mom (ate my emotions), there was some difficulty with foods as well as I had a rootcanal and jaw infection to contend with... I gained a bit of the old weight back which I now, at 45, find extremely difficult to shift again, as menopause is also starting to kick in. I probably could drop more if I went back to a carnivore diet, but I happen to produce lots and lots of kidneystones on that, so not really much of an option, alas. (It may be for you, though, but it's not for everyone, as it is a rather extreme diet.) Basically... With PCOS everything's a bit of a struggle. Hormones, eh, they dost suck.
So, where are you at now? You have insulin resistance, but do you know what your HbA1c is? If not, it's well worth going after. (It might be in your records online). It's good to know whether you're diabetic, prediabetic or still in the normal range. Also, do you have a meter? You're not likely to have been issued one, the bulk of us self-fund, but it's a faunt of information and could help you find out which foods/drinks are and aren't agreeing with you. Lord knows I was eating things I thought were low carb, which decidedly weren't, when I was just starting out. It's a steep learning curve, after all. Can you tell us what you're eating/drinking at the moment on an average day? Maybe there's still carbs that can be cut/replaced here and there, if you're interested in that.
All in all... You're on the right path and asking the right questions. Tell us more about yourself, your bloodwork if possible, other medication you might be on (steroids and statins can raise blood sugars for instance), and who knows what we might come up with.
Good luck!
Jo
PS: I might still be chunky, but getting my blood sugars under control did mean not being fatigued all the time, able to finally build a little bit of muscle and stamina, being less severely depressed/suicidal/moodswingy, the warts and yeast infections went away too.... So even if weight remains an issue, your over-all health will likely improve greatly, now you know what the problem is. So keep an eye on those things as well, if any of those have hit you too, and don't let weight be the only bench-mark; there's lots to gain in quality of life in other areas as well!
From what I gather online those can be very carby, but being home made, I have no idea what you put in there. Maybe deconstruct that and see whether there's anything to be gained there?