I have had a period of significant migraines. Not just the more typical type, but also what my doctor labeled as "silent migraines". The latter did not include the pain and nausea, but all of the other symptoms and triggers of the former. The former more typical type was one I only experienced for a period of about two years. Only. I haven't had one of that type since maybe five or so years ago (rough guess). The silent ones I started having a little while after, but they eventually stopped, too.

What caused my migraines? Honestly, I'm not sure. Could have been a medication. If so, I don't know which one(s). I take some of the same now that I took then. I took others at that time, too, that hadn't caused migraines before it. I speculated that mine started almost as a reaction to brain trauma from my worst episodes. At that time, it was also suspected that I had experienced Simple Partial Seizures. Having gone to a neurologist to investigate that, I also was prescribed a migraine medication that worked wonders for me. Wonders! When I would get the migraine (which was more nausea/vomiting than pain, for me), I injected myself with sumitriptan. Within seconds of the injection I would feel a coolness run through my brain, and then soon after both any pain and all nausea disappeared.

Someone already mentioned the link between bipolar disorder and migraines. Actually, there are an odd number of links between them, and some other conditions. Some are mentioned at Interesting similarities/links between bipolar disorder & other conditions – Bird Flight.

For reference, I currently take carbamazepine ER (Tegretol XR), Lamictal, Seroquel XR and Klonopin. When I had the migraines, I was also taking Geodon and possibly also Lithium ER and a third antipsychotic. I can't help but wonder if Geodon played a part. Or Lithium. But as I wrote, I had taken all further in the past without migraines. In any case, during my migraine period, I was on a mess load of medications. Maybe that was part of the problem.

I had mentioned in one of your other threads that I also experienced double vision in the past. In my case, it was from carbamazepine ER (Tegretol XR). The first times I had it was when my carbamazepine dose was being raised, but then it stopped even though I ended up on a huge dose of 1,400 mg. Then a few years later, the double vision started again. My psychiatrist lowered my dose to 1,200 mg, and it stopped. Nowadays, I only take 600 mg carbamazepine ER. The further lowering was because this medication caused significant clumsiness. My doctor became concerned about how often I would become accidentally injured (falls, slamming into to things, etc.)

Sorry if I wrote too much.

If you're interested in my experience with diplopia, I wrote about it Double vision – My experience with diplopia – Bird Flight