Can a migraine last for a month? I was diagnosed today with what the doctor is calling migraine without the headache phase. I have had dizziness and vertigo for over a month now. I had surgery on my hand six weeks ago and woke up with lightheadedness and vertigo. When I move my head or walk around, things seem to shake or move for a few seconds. This happens frequently throughout the day. Flickering light while driving is especially bad too. I end up feeling motion sick and with a dull headache. Its like my brain isn't processing visual information quickly enough, but my vision is checks out fine. Is this a migraine or repeated migraines that I'm getting everyday? Do I need to get a second opinion? My symptoms seem unusual because of the frequency and duration.