As a precautionary measure, try to consult a Homeopathy Doctor or an Acupuncture Doctor and get the treatment for this. This is called as \'Constitutional Medicine\' in Homeopathy and \'Pulse Balancing\' in Acupuncture. There are no side effects in Alternative Medicines like Allopathy (English Medicines). Also they won\'t charge much. Hence it\'s better to consult any one of them.
As per Acupuncture, \'Sour Taste\' is the cause of \'Sugar\'. Means Sour Taste foods like Tamarind, Tomato, Pickles, Curd and Milk are the fuels of Sugar. Hence avoid taking them now itself. If u have the habit of taking Tea regularly, stop it now itself. You can see people around you who are having diabetes. They won\'t intake Sweets, but still the Sugar level will not come down. If you observe them properly, they wouldn\'t have stopped taking Tea / Coffee and Curd with their meals. If you ask them, they\'ll say that they are taking Coffee / Tea without Sugar. From this you can understand that \'Sugar\' is triggered only by \'Sour\'.