Thanks for providing more information.
My dear,i understand your condition and as per your description,you need to undergo blood work to get a clear diagnosis of your symptoms.
As both hypoglycemia and TIA can cause sudden episodes of blurred vision,headache,Sudden blindness in one or both eyes or double vision,Dizziness, loss of balance or coordination.
And usually symptoms last for a short period of time.
And further blood sugar monitoring,CT scan head should be done.
Other potential differential diagnosis may include refractive error,eye problem,high blood pressure,dehydration,Anemia.
So a complete blood work should be done in your case.
And it's good to consult your primary doctor ASAP.
Hope this helps.
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