Hi, welcome to our site. I am Dr Saumya Mittal, MD. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query Two things we need to get clear about- 1. your sugars dropped after a big meal. So obviously the sugars must have been much lower. Had you not had that big meal, the sugars may have dropped further down, This means that the medicines you are taking are high, and need to be reduced. In fact 120 is almost too good a control. 2. The sugars have shot up due to the body s response to the low sugars. They will return to normal. Just keep taking your medicines. However in view of your hypoglycemia episode, a visit to your diabetician is warranted. I hope this helps you. Inform the reports mentioned above/if any other so I can be of help further. 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. Please feel free to ask another query. I would be glad to help you. 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) Best of luck.