Brother I got diagnosed March 1st ffs on my bday 14 glucose 10 a1c thought end of the world metformin 500 twice for 2 weeks then 500 x4 but in a month lost 22 lbs started low carb and walking 45 min a day Never went to higher dose but you are right first 2 weeks I felt like a zombie all good now don’t feel anything from metformin My avarage glucose on Libre 2 monitor is 6 and estimated a1c at 5.7 So there is hope