A fasting sugar of 130 while taking Metformin 500 OD-BD is slightly high. You should consult your doctor to review your dose and consider additional steps, such as following a balanced diet, engaging in regular exercise, managing your weight, and routine blood sugar monitoring, to improve control.

Metformin is a commonly prescribed first-line medication for type 2 diabetes. However, if you are experiencing stomach bloating or other side effects, it is important to discuss this with your doctor. They may suggest adjusting the dosage or trying a different antidiabetic medication (such as DPP-4 inhibitors, SGLT2 inhibitors, or sulfonylureas) that may be more suitable for you while effectively managing your diabetes.