It is also well known that this disorder is caused due to an imbalance in insulin levels. Thus, the main problem that causes diabetes is hormonal imbalance. Thus, the doctor that you should consult in this case is an endocrinologist in Guwahati. Most people do not understand this, and waste a lot of time consulting various GPs until they reach the heart of the matter. Let us understand the symptoms that should trigger your next visit to your endocrinologist.