Hi
@Lissia I get/got a lot of those symptoms in my arms and hands, but they are all related to trapped nerves, in my neck, some tennis elbow, arthritis and RSI. Mine was induced by a bad combination of work screen height, varifocals and an unsuitable mouse and also carrying a not-even-heavy shoulder bag. (I have also had sciatic pain in the past, which goes from your butt to leg).
Maybe you have habits that could be at play, or something completely different, a slipped disc? It took an age, and trying lots of nasty drugs before getting diagnosed via neck x-ray, and a whole bunch of physio and chiropractor treatment to sort me, but I still need to be conscious of what can trigger episodes, which still occur mildly, but I am usually well aware of what has brought it on.
Mine is definitely not diabetes-related, my HbA1c was tested back then (2018) as part of a full panel of blood tests to try to diagnose what was actually going on, I was very much in non-diabetic territory (32.2 - 5.1%), which I only found out recently.
It's hard to distinguish if something you have never had before your diabetes diagnosis is related or not isn't it?
Get yourself to your GP and see what they say. Good luck.