I dont know if this helps you, but a couple of years ago, well, slightly more than that (pre lockdown) and pre diagnosis. I had pins and needles and tingling numbness in my wrists, I wasnt concerned too much as it wasnt painful and I just assumed I had leant on them badly and stopped the blood flow. This however used to come on at random times of the day, I could just be sitting still in a meeting and it would come on. I googled and saw that one of the causes could be diabetes but I disregarded that as I had healed miraculously fast from a serious burn recently which I remember thinking to myself, well at least I know I am not diabetic! Seriously, I have photos of my arm somewhere, I will see if I can find them. Basically we had a new hot water boiler for making tea and coffee installed at work and the nozzle the water came out of was further forward, so when I placed my cup under what would have been the old nozzle my arm was actually under the direct flow of the boiling water, also it was weird but I kept it there in shock for a few seconds until the pain hit, I luckily work for an ambulance trust and a couple of paramedics took a look at my arm, the skin was swollen and badly burnt. But over the course of 2 weeks, it lost a layer of skin but then healed and you wouldnt know it had ever been burnt. Sorry rambling off the subject here.
Anyway, I just sort of ignored my pins and needles and numbness, then it just went, after maybe 8 months of having it on and off, then lockdown and then last year I was diagnosed as diabetic, not sure if connected but if it was why did it get better without any treatment? I guess what I am trying to say is that not all conditions are linked back to being diabetic, and it could be something that will clear up, you are doing the right thing seeing your GP just try and not worry too much until you know what it is and how it can be treated, everyone has a different experience, story so yours may be a positive one 🙂
I am a worrier too so do understand, but in the words of a song, "When you worry you make it double" is something I try and remember, anxiety in itself can cause issues (I also have diazepam when I am stressed and unable to sleep so no judgement, just a fellow sufferer trying to perk you up and show you are not alone