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 There are two issues 1. when you are changing from oral tabs to insulin, the dose requirement needs to be fixed before you can get sugar controls again. the typical dose is individual to each person. so till you achieve that, continue to follow with your dr. dont keep switching. meet your dr and let her change the doses instead of switching to tabs again 2. if you were well controlled on tabs, what was the reason to change. very few dr change an ongoing successful therapy. discuss with her why she had to change the therapy. 3. make sure you are taking insulin in the right way using a correct syringe maintain a record of sugars 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)