It was the Extended Release, symptoms were for over 3 months and since I had (at the time) to be in front of an audience giving presentations, simply did not work for me. I am now on Jardiance and Tradjenta with no side effects. More expensive but at least it works.
I started Glipizide with the ongoing Metformin about 9 months ago. Great results, but nausea is a side effect in the mornings. For the first time in years, I am hungry in the morning, great numbers, A1C is 6.0 (started at 13, 3 years ago).
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The best treatment is activity/exercise. Huffing and puffing. The more I work out the better the numbers. If I could do enough running I could end all meds. Still need to eat sensibly, keto as much as possible.