question: Hi doctor, my dad who is 72 years old and has not been known to be diabetic till now suddenly had sugar level shoot up to around 600 mark. we had consulted a doctor and he's been on glycomet 500mg twice a day since 2 days now. with the first dose of medication his sugar level dropped to 450 but since then further medication has not been able to bring  it down further. He feels very weak, he also takes medication for hypertension (has been on them for quite few years). any guidance will be appreciated