Hi Dannyb22
Welcome to the forums. Your A1c is right on the edge of a formal diabetes diagnosis. I would suggest it's a good idea to avoid getting diagnosed - it has implications for life insurance and all sorts of other things - once diagnosed as "diabetic" you're always "diabetic" officially, even if your blood glucose has been normal for years. Low carb eating works very well (in the experiences of many of us on this forum) to drop blood glucose levels quickly.
One of the rules of this forum is that we can't give medical advice nor can we diagnose. I can tell you my experiences, though. I started getting tingles/prickles in my feet around 2014, when my BG was about 45 (but no-one had told me). This fairly quickly - within a year or so - had moved on to a burning pain in both feet which either stopped me sleeping or woke me up. Got bad at night and became worse when I took the weight off my feet - standing controlled the pain a bit but didn't do much for sleep.
I didn't have achy calves, but my lower legs did go very red and I developed oedema. Naproxen helped a bit, but made my oedema worse.
Roll forward a couple of years: I was (finally) formally diagnosed with T2 diabetes in 2019 and started keto at 20g carbs/day. My BG dropped immediately and the symptoms largely went as well. I do still have a peristent warm tingle in my feet mainly when sitting or lying - it's not pain and it doesn't stop me sleeping , but it does seem to be permanent damage from five or six years of neuropathy.
I'm not going to comment on cholesterol as that isn't diabetes related and I don't think it means much anyway. The only thing I'll mention is that after cutting carbs and increasing my intake of meats, fats and dairy, my total (as calculated) cholesterol has fallen a couple of points - eight something down to six something.