Hi
@gowest12. I like the whole analysis of bodies thing, so I got intrigued by your prediabetes as a TOFI dilemma.
I also got confused by your talking about your body fat being of an obese person, as a thin person, so I got your vitals and put them into my favourite waist height ratio graphic, ditto your BMI, at health-calc. (It involved a bit of note-taking, having to convert the stones thing, and the feet thing - so I hope I got it right. I took a couple of readings, as stones and feet don't convert neatly into the metric or the US system. Very happy to be corrected if I did the conversions wrong.) I've done a range on the waist/height ratio to give you an indicator how close to 'the line' we can be with a waist height ratio of .49 (and I have been there plenty of times.).
First the disclaimer - I totally get that BMIs are notoriously bad health calcaulations. I only track mine because my local medical centre goes whole hog on BMIs, so I have to really, to discuss it with them. (I would hazard a guess that most of our docs, nurses, and med centres take great notice of BMIs - I have been begging my medical professionals to take notice of the way more reliable waist height ratio for years, to no avail.) BMIs are also quite handy in here, to discuss weight stuff easily, which is why the meds like it so much too.
Also, on these graphics, it depicts a certain kind of male and female physique. My silhouette is nothing like the health-calc one, but it is quite handy for making visual the body fat thing. I did this for another person in this forum, and she found it quite helpful, so I thought I would do it for you too.
What I see is a fairly classic fat storage pathway of folks who get blood glucose dysregulation - that is - on the belly. When you, ie someone with this fat storage pathway, stores excess energy from food, it will go mainly to your waist and hips region. And the idea is, that is where our key organs are for food digestion and regulation and so on. So sick fat cells on/in the liver and pancreas in particular is associated with blood glucose regulation problems, and of course, insulin resistance.
This is very common for folks with prediabetes and diabetes. It is absolutley my own body fat pattern for sure.
You say you can't afford to lose weight (I would say - belly fat, not weight per se). But in fact your BMI is not borderline 'too thin'. Which would be 18-18.5. And what I say too is - you can tell when oneself or others are dangerously thin. Starving people, or beginning to starve people have a very distinct look. Your loved ones will tell you if you are looking starved! I would say. Or - your mirror will. And your energy level. Starved folks don't get up and go much.
If you are starting to get some blood glucose dysregulation, being in the low-end prediabetes range, your body is telling you you can afford to lose some belly fat, and yeah - cutting down on the carbs is the way to do it.
You are lucky
@gowest12, even though I understand you don't feel that way. Lowering carb intake to get rid of some excess belly fat (which should, theoretically, bring your HBA1c down with the departing belly fat), is pretty straight forward in the diabetes scheme of things. If you do that, and be a slender person, you theoretically should never get diabetes.
My family is full of people in that bmi 20 ish range, so I don't see that as 'too thin' - in fact it's probably the old norm for our species, when eating from nature, as it were.
So - in a nutshell - you are probably not 'too thin', you probably have belly fat to spare, so it's a 'no worries' verdict, from this wee delve into your body type from your vitals at least.
I hope this has been reassuring?