I went for five years with a diagnosis of a TIA or ministroke or stroke brought on by migraine. I ended up in the emergency room with total one sided numbness and partial blindness. All symptoms passed within an hour and I had a raging headache afterwards. Just this year, after five years of follow up tests, I finally got to a Neurologist that is a headache specialist and after he looked at all my tests , he informed me that it was NOT a TIA or stroke of any kind but a 'complex migraine' and they are fairly common. If you look up that terminoligy your search should yield better results and see if your symptoms match
So, I am not sure who diagnosed you, but you may want a second opinion from a headache specialist just to alleviate your concerns and save you years of tests that you might not need. And if it was a true stroke or mini stroke , you would want proper treatment for that particular issue as well so long term you have the best health outcome possible.
In my case, I have not had any other issues like the one that landed me in the hospital, just the regular run of the mill migraines that annoy the crud of you on a weekly basis Got good treatment from my new doc and have decent relief finally so my story ends well, so best of luck to you with your health as well