Hi and welcome to HCM. Monitoring your diet is highly vital as the food you eat directly affects your blood sugar levels and weight. Advice her to follow these dietary modifications. 1.Eat every 2-3 hours in small quantities rather than eating 3 large meals. 2.Include complex carbs in every meal – whole wheat, ragi, jowar, brown rice, oats, etc. 3.Avoid refined cereal products like bread, noodles, polished rice, etc. as they can raise blood sugar levels. 4.Choose fibre-rich foods like vegetables, whole grains, etc 5.Depending on her blood sugar, don’t have more than 2 fruits/day and if you are fond of mango/banana, opt for these early in the morning. 6. Reduce butter, ghee or oil intake. Also, avoid processed foods like cakes, biscuits, ready-to-eat foods as they are loaded with fats. Salt and sugar and can aggravate complications like blood pressure and cholesterol levels. 7.Sugary foods are a complete no-no. She can use artificial sweeteners occasionally, but avoid overdependence on them. 8. Always tell her to carry a snack with when travelling to avoid hypoglycemia (low blood sugar) and dizziness. Exercise guidelines 1.exercise at least 4-5 times/week to help you get her blood sugar in control. 2.choose moderate exercises like aerobics, brisk walking, weight training, swimming, dancing, etc. 3.Eat immediately after exercise to avoid fall in blood sugar. 4.Carry sugar tablets or glucose water with you in case of an emergency hypoglycemia situation. 5.Avoid exercise in case of severe complications like kidney problems, nerve problems or wounds. Your mother blood sugar is not coming under control even after putting on metformin. Headaches and dizziness are because of her high sugar levels I think you need to take her back to her doctor and he may increase the metformin dose or put her on combination drugs. If sugar still wont come down then insulin is best choice. All the best Regards Dr Santosh