When a diabetes medicine is changed, it can sometimes affect sugar control because different medicines work in different ways and strengths. K Pio M contains a combination of drugs that may have given stronger control for your fasting sugar, while Wallaphage SR 1000 mainly contains metformin, so the effect may feel slightly less in some people. Apart from the medicine change, fasting sugar can also rise due to diet changes, late dinners, reduced physical activity, stress, poor sleep, or the gradual progression of diabetes itself. A single reading of 130 is not very high, but it shows that your current routine may need adjustment. Try keeping your meals consistent, avoiding sugary and refined foods, reducing late-night eating, and including a daily walk, especially after dinner, as it helps lower morning sugar. Drinking enough water and maintaining good sleep also supports better control. If fasting levels stay above target for a few weeks or keep increasing, your doctor may need to review the dose or add another medicine to improve control. Watch for symptoms like tiredness, excessive thirst, or frequent urination and get checked if they appear.