Hi, Welcome to icliniq.com. You have an excellent question which I am glad to answer. It is nice to see that your height and weight are normal and you have good nutrition. But, you still have a big belly. The common causes are slow metabolism of the body to break down fats, lack of exercise making the abdominal muscles weak and saggy, sedentary lifestyle and the rare cause can be diabetes.
Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.