question: Hello doctor, For the past eight months or so, I have had some problems with unusual headaches and sort of momentary feelings of lightheadedness, vertigo but it is like everything just shifts for a second instead of spinning. I have a background of stable migraine headache. I have had some face pressure as well and some momentary stabbing headaches. Some chronic low-grade nausea that can disappear for weeks at a time and is not usually accompanied by a headache. I went through the gamut with GP, he then referred me to an ENT, and then to a neurologist. I am still getting some headaches but have had a clear CT scan of sinuses. A full neurological exam was done and that was normal, and the neurologist did not seem to think that additional imaging (MRI) was needed because my exam was normal. Even though it was a CT scan of the sinuses, they would have seen the brain (particularly frontal lobe) and notified of any abnormalities they could see. I had a clear MRI approximately one year ago for some twitching and muscle pain. Do you agree that further examination is not warranted? In other words, with the above information is a structural problem unlikely?