For decades, I have migraines of several types (some of us lucky ones get two or more different kinds), and what you experienced certainly sounds like a migraine with aura. Your 10 minute timeline is about perfect, too.
Click on the animation on this page to compare it to what you saw:
To answer your question about stroke, there is a statistical link between migraine and increased risk of stroke, but most research indicates that the risk is quite low--but higher than it needs to be in smokers. That's a hint.
Go to your walk-in clinic to be on the safe side. They will take your history and examine you, always a prudent thing with a new experience like this, even though you're probably just going to be diagnosed with migraine headache. They'll also give you some advice which will include stopping the cigarettes and losing your expensive but largely ineffective supplements--which might be triggers for migraine--and the cost of which you can then put towards migraine medication.
It would probably help you to read up on migraine at sites like these:
After that, you can join the migraine discussion here at medhelp: