Hi, welcome to our site. I am Dr Saumya Mittal. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query First, I feel you are trying to decide if high blood sugar is a component of appendicitis. So let me confirm that this is not the case. The two conditions are not directly related. However indirect connections may be considered. If there is a severe infection, the blood sugars will rise. So whether the source of infection is appendicitis, or a pneumonia or a urinary tract infection, the sugars may rise. Of course drop in sugar is also known. On the flip side, if the sugars are uncontrolled, the chances of complications are high and infections may happen more easily. I would suggest you meet your doctor, in view of the abdominal problems and the sugars, especially since when he is not eating the regular diabetes medicines will need to be modified Check sugars regularly I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Looking forward to your return query with the details asked so that I can help you further. (If the answer has helped you, please indicate this)