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 Lets face it. Every thing you eat is going to cause side effects. Even the food you eat may cause allergy- you may have heard of allergy to egg protein for instance. The medicines almost always have a side effect. There is no medicine which does not have side effect. What we need to balance when giving a medicine is to know the benefit: risk ratio. In simple words knowing that the benefits of a medicine are far greater than the risks and side effects caused by a medicine. Diabetes damages every organ of the body. So it is important to control it. In this case, the side effects needs to be matched in relation to her other illnesses she may have like hypertension. I hope that this answers you. Suggest testing HbA1C and Vitamin D. 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. Please feel free to ask another query. Would be glad to help you. (If the answer has helped you, please indicate this)