Your fasting blood sugar of 140-160 and post-meal levels of 250-280, along with sugar in urine, show that your current diabetes treatment with Glimestar M?2 is not adequately controlling your sugar. It is important to consult your doctor, who may adjust your medication, add another medicine if needed, and guide you on diet, exercise, and regular monitoring to bring your blood sugar within a safer range and prevent complications.

GLIMESTAR M2 itself usually does not cause acidity, but diabetes can slow stomach emptying and increase reflux, leading to heartburn. Other factors, such as diet (especially spicy or fatty foods) and irregular meals, can also trigger acidity, so managing lifestyle alongside medicines helps reduce symptoms.