Which Condition Would Cause Episodes Of Migraine Followed By Vertigo, Nausea, Body Tremors And Vomiting Every Few Months?

I have lived with a weird neuro disorder my whole life (I m almost 33 now), and am curious to know what it could be! When I was young, my parents took me to neurologists and had MRIs and scans and everything done - but there was no definitive answer. She also took detailed notes about my experiences. Beginning when I was a small child, I would wake up and have these episodes. They usually lasted a few nights, sometimes two in a night. Every 75-80 days, like clockwork, I would wake up with what we called a migraine. They only happened when I was sleeping. When I woke up, the entire room would be spinning. Intense pain and spinning would come in waves every few seconds for about 15-30 minutes. When the waves weren t happening, I could open my eyes or move if I needed to. But during the waves of pain/spinning, I had to squeeze my eyes shut and my whole body would shake. I would end up dripping in sweat, I would throw up, and eventually it would all calm down. I would remain nauseous for hours, sometimes throwing up several more times. I would have an extreme headache and things would definitely still move when I was looking at them. But it behaved more like a regular migraine or vertigo at that point. If I was able to actually get back to sleep, I could wake with a second one in the same night. Most times, I had them for several nights in a row. Then I d be done until the next cycle, 75-80 days later. As I got older, I learned a few ways to help the pain. Between the waves of pain I could open my eyes, and try to calm the spinning down by focusing on one object for a couple seconds, then intentionally moving my eyes to another object, then another - making kind of a pattern or rhythm to slow the vertigo down. And as I got older, they seemed less intense - perhaps a bit shorter in duration and not as many nights in a row. When I was 17 I began an anti-depressant and I have only had one of these episodes ONCE since then - because I didn t take my meds for a few days in a row. I guess I m just wondering what I could have, especially since I have three kids now. I would like to know for their sakes what it is! When I was young, no neurologist in the Midwest could figure it out or had a diagnosis that fit my set of symptoms. If you have any ideas - it s a pretty severe and debilitating disorder that I d love to know more about. THANK YOU!!