Hi Barbara, metfartin LOL oh god I've got all this to come! Just in time for the family coming to stay at Christmas! Great timing I'll be getting a nickname. When you say GAD are you referring to generalised anxiety disorder? I do actually have this and when stressed it massively influences my readings and manifests physical symptoms too. I will google the GAD antibody test, I've never heard of it before or yhe C peptides. I've had one physical face to face appt since first being diagnosed, the rest are all telephone appts and the information can be overwhelming in a 10 minute phone call but my nurse is great and so is my GP, I consider myself really lucky to have moved and got a really good surgery, I always feel so much better after speaking to them. I'm clueless on the subject , like you've mentioned the above tests, never heard of them so I will research. My way of coping with the diagnosis is to keep things as simple as possible, not look into too much otherwise I get overwhelmed. I live on my own and not being able to voice fears etc to someone when you need to can make things get over dramatised, so keeping up simple. It's going well so far. Sue.The ketone test itself is no problem. Do you have urine sticks or Blood ketone strips for your BG meter? I am actually rather impressed that your nurse gave you a means of testing for ketones as Type 2 diabetics don't normally have a problem with ketones so aren't given a means of testing for them. Ketones develop if you are not producing enough insulin and most Type 2s produce excess insulin because they have become insulin resistant. ie their body is less responsive to the insulin they produce, so they have to produce more insulin to do the same job.
Obviously it is a worry if you do develop ketones in any significant amount and you need to seek medical care if that happens but I had a reading of 27 one night and no ketones and certainly regular readings in the mid teens in the early days of diagnosis and didn't get ketones, so don't worry that it will happen if you get readings in the mid teens, just that there is a slight possibility that you might produce some.
I too had a rather bad diet pre-diagnosis so it was certainly easy to understand how I had developed Type 2 diabetes and my HbA1c was 112 but it subsequently turned out I was Type 1. I wonder if they had started me on insulin straight away, if it would have preserved more of my beta cells.
Anyway, just saying to keep an open mind about your diabetes type and be prepared to push for additional testing (C-peptide and GAD antibody tests) if your levels do start to skyrocket when you come off the insulin, despite a low carb diet with or without what is unaffectionately referred to as "Metfartin" 🙄