Dear thanks for the question and welcome to hcm. I share your concerns. You need to under go physical examination and detailed blood work up. This blood work up will include your sugar levels too. Most probable cause in this age group is anaemia (low haemoglobin level). You need to increase your fluid intake too, as dehydration is second important cause which is generally missed. If you have family history of diabetes, then it could be a cause. I would advise you to visit a doctor and under go these tests and once cause is identified treatment can be planned. You will be fine and will be able to avoid embarrassment. I hope my reply will benefit you. Please write to hcm for follow up queries. I wish you good health. Hit a thanks. Thank you