You're doing the right thing by going to a neurologist. I suffered migraines for years, just the visual effects. Migraines run in my family. I later developed seizures, unrelated to the migraine activity, I believe, but one thing my neurologist did say that migraines and seizures can be closely related.
Along those lines, after being medicated for the seizures, the migraines went away. You mentioned speech, something my seizures effected with me. I had brief periods of aphasia, weird, I'd be half way through a sentence and just stop talking, I'd be standing there with a stupid look on my face, not sure what happened.
I'm not suggesting you have seizures, but I am acknowledging that I've experienced issues with speech and can identify with what you're saying. Now that I'm medicated, I usually don't have trouble unless I get breakthrough symptoms. I was teaching a class at work and began having breakthrough symptoms, I was putting the wrong words together while trying to speak. It didn't last long but it is embarrassing in front of a lot of people.
Here is a link to reporters that experienced migraine related speech difficulties while on the air. As you can see, migraines can do much more than most people realize.m.youtube.com/watch?v=YxupxBKatX0m.youtube.com/watch?v=bL7n6y09aAo
These are the type of migraines I had sometimes several times a week. Ocular (Visual). m.youtube.com/watch?v=fo139jYAFzA
I'm curious, what do you mean by 3D effects?
Here's another migraine variant that effects perception.m.youtube.com/watch?v=iRL6M5GYRD8m.youtube.com/watch?v=o40LRnLRiJ0
Just hang in there, the world of migraines can be much stranger and more varied than most people realize.
Hope this helps. Feel free to ask questions.