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I understand your concern.Migraine pains are the worst kinds of headache and those who have that are highly unfortunate. Yes since you already are a known patient of Migraine with aura, it seems more like a migraine attack. Migraine pain at times can be atypical, presenting on only one side of the head. And at times it doesn't need any triggers. Its a complex phenomena, involving the neurotransmitter dopamine in our brain, which leads to repeated constricting and dilating of the blood vessels in the head, and hence the pain arises.
Take tylenol when you get an attack next time. Also make sure your BP is under control, because high BP can also trigger a migraine attack. If possible get your BP checked just to be sure. In case you keep getting attacks, we can discuss other modes of treatment such as dopamine antagonists or ergot alkaloids. But those are later. Hopefully your symptom will subside with tylenol.
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