3.9 after shower + shampoo plus walking dogs, but I think 4.2 lowest before that. I think I may have got it very low with lower carb higher protein/fat diet, and trying to reduce stress, but have long had low BMI too for decades and walked my dogs 1.5 hrs a day. HbA1c was 43 for the last two years, so interesting to see what this summer brings, including for my cholesterol (was 5.1, down from 6.1 a year earlier when under much more stress). My readings have definitely gone up to prediabetic levels with e.g. iced Christmas cake, or hummus sandwich with regular wholewheat bread, and my brother developed type 2, so want to avoid that.