I can only talk about what I did with my medication . Like you feel, I don't think my doctors are interested of change of lowering medication...quite opposite. When I started LCHF diet...after first few weeks my blood sugar levels started change drastically. But there was not point
FOR ME to contact nurse, I would not be able to see them that quick anyway and I needed to adjust there and then....not eat more and wait to see them.
I was already started to get close to hypo range, and regularly so...as I'm on insulin..that seemed like first point of call to adjust. I was testing my blood sugars many times during day so I knew what was happening to me. My hypos were happening mainly during night time or early morning....so that told me that long acting insulin was the one that I needed less, or I would split the doze so not so much was circulating during night and had little extra in the morning. Taking few units less every other day until the numbers started to level up and no hypos occurred anymore....sometimes I would miss my short acting one if my blood sugars were already lower end of normal and I was eating very little carbs anyway...there was no point to take insulin on top of that.
Tablets however is different story... I'm often trialing how things affect my body...AGAIN....lot of blood testing and writing things down so I can see any changes on paper.
I've been in hospital course for insulin users...so I was 'trained' to adjust my insulin intake for what I've eaten/for my needs...so I felt comfortable tackling this myself without need of nurses assistance. I'm going to see nurse couple weeks time and she will quite likely question everything and anything I've decided for my own benefit

When I change anything with my medication....I always find out what the medication is for and its purposed effect. After my insulin levels dropped into normal levels with either no insulin injection or very small correction dozes...I dropped my 'gliptins'...I didn't need to depress my appetite, I didn't have cravings in first place, my blood sugars were normal...so I stopped taking them to see what would change...=nothing

So that's my story....BUT I don't even know what half of your medicines are for and they are supposed to do....so I cannot comment what you could/should do.
All I can say...educate yourself about every medicine you take...carry on with your new found diet...make appointment to see your D.nurse and have all your blood sugar readings as proof what changes you've achieved with you and question her. Ask...all the 'what if' questions...if you attention is to able to take less medication,make that very clear, you will need show that you can do it and you have need for it...and then you insist some advise which way to go about it.
I'm 'bad' patient...I have habit of taking myself off from meds and tell doctor later on when I see him..but I always show proof for it....blood pressure meds, I measured and had tests results written down from quite long period...and doctor agreed there was no need.
Statins....well.....I'm yet to see doctor who is not trying to 'sell' them, but I had such a bad side effects from them in past so now I'm just refusing from them point blank..
Metformin...that I will keep, as it does have purpose for other things than just diabetes control and I think I need them for time being.
Insulin...I'm still taking it...but only as and when there is need...dozes are small and occasional
My body..my decisions...but I also have to put hard work for it to keep things under control, as long they are, no doctor/nurse have point to argue with it.
I keep food diary..I record all my changes and effects to them afterward...write down everything I eat, my test results, weight, blood pressure, suggestions for myself what to do and what not to do, how I feel, 'time of month, 'loo visits'....anything and everything that is relevant. I can then adjust what needs to be done or I soon see what I should not have done...and it is good proof for doctor/nurse that I'm taking things seriously.
Though last time I saw doctor and showed my diary he asked "don't you have record book to write just numbers?"...'yes I do, but they are just numbers and there is no room to explain why the numbers ended up to be so..' So he shut up

Now I'm that little bit wiser....I have print out of 'numbers' with graphs..it should make it all much easier for them to see
