Hi, I am in the same situation. Male 58 225lbs. A1C 5.6-5.8 for years. In Jan 2023 I got ill with strange sensations in legs at knee level and below. After 2 months of complaining they sent me to a neurologist and in a few days they found my b6 was 111 ng/ml. I was taking a daily vitamin and my diet was super healthy salmon, chicken breast, lean beef, spinach, kale, avacado. I stopped all vitamins and went on a literal junk food diet. Sausage, luncheon meat sandwiches, bacon and egg whites. In 3 months b6 came down to 20. Minor symptoms remained in my legs, mostly around my knees. Feels weird when my clothes rub them softly. Fast forward a few weeks ago I started feeling strange again but now in my arms. I have not taken any supplements but have resumed my healthy diet. I was just tested and b6 is high again. It is 50 ng/ml. I am just wondering if it related to COVID. I had COVID October 2022 for 3.5 days (fever 102 and headache) and before COVID I was healthy and strong but all the problems started after COVID.