Conversation: The conversation between human and AI assistant.
[|Human|] Hi i have had lightheadedness, headache and fuzzy vision for 5 months. i did an MRI of the brain and it was normal and my ct scan was normal. All my blood counts were normal. i went to an Endo doctor and they tested me and said i had prediabetes and high cholesterol. Would Prediabetes be causing my body to feel this uneasy ? they put me on Metformin and today i tested my blood sugar and it is 120 (2 hours after lunch) . does this sound like the right diagnosis?
[|AI|]  Hello, Welcome to Chat Doctor. I have read your question and understand your concerns. I do understand that you are worried about your symptoms. It is good that your MRI, CT scan and blood counts are normal. This rules out a space occupying lesion in your brain which is what majority of patients are worried about when they have a headache along with visual disturbances. Prediabetes is unlikely to cause blurred vision in you. Very high blood glucose can cause blurred vision but in prediabetes, the blood glucose is not that high. Further, by starting metformin your 2-hour postprandial glucose is in normal range. Blurred vision by itself can cause a tension type headache due to straining of nerves. I would advise you to see an ophthalmologist so that you could have a full eye check. I hope this answer has helped you. Thank regards Chat Doctor.