Welcome to the Migraine and Headaches Forum! This forum is for questions and support regarding migraine and headache issues such as: abdominal
migraines, headaches caused by allergies, cluster headaches,
headaches, headaches in children, migraine headaches, sinus headaches, tension headaches, visual disturbances.
Since possibilities like sinusitis, stroke, neurological lesion have been ruled out, migraine appears to be the most likely cause.
Triptans like Maxalt and Relpax do not seem to be working in your case, so it is very likely that you need other migraine meds like Topamax, beta blockers etc.
I would also suggest you to maintain a diary to identify the trigger for these symptoms and take magnesium supplements.
Hope this helps!