I'm sorry to hear that, but now you know your enemy! And may be some of the other possible diagnoses wouldn't be that much better...
JAR-FCL 3 isn't very specific about your issue, but (as I understand it, not being AME) it allows reevaluation of a class 1 after a SINGLE episode if a definite reason can be established.
This is most certainly what I would do anyhow, independently of the medical.
Now, one important thing: you did NOT have a stroke, it was a TIA (transitoric ischemic attac), because it lasted to short for a stroke and went away by itself.
Unfortunately, a TIA is associated with an increased risk of stroke over time, with ~5% within 1 week, ~10% within a month and 15-20% over 90 days. And that is what you really don't need.
The cause of the TIA is a very small blood clot from somewhere else in the body traveling to the brain and clogging a small vessel. That's where it makes sense to tackle: the most common areas where these clots come from are: the carotic bifurcation, the heart (valves, atrium), and the aortic root. This is pure cardiologists land and it probably would be a good investment to go there.
Now it gets a bit more tricky: certain types of vascular diseases and certain types of treatment can interfere again with your medical. So if there are findings which offer therapeutic alternatives, get advice from an AME, what from a flying perspective woudl be the preffered treatmen.
That is the pure medical part. But what else you can do, is at least as important.
Get rid of your risk factors!
Get your BMI in a normal range, do some sports. That doesn't need to be high intensity, even 3 times a week a 30 minute walk helps. Didn't your wife wanted to do that tango dancing since years? Would most certainly qualify.
And have a look at your nutrition. I personally do not like the current standard approach: low protein, low fats, no fun. Recent scientific evidence even suggests, that this aproach is counterproductive, but to be honest, the books aren't closed on this topic. Do some reading on low carb, may be it could be fitted into your lifestyle.
Stop smoking (if you do) and limit alcohol (but still have fun!).
And finally, as you never know, what happens next, make sure you and your wife know where the closest stroke unit is and have copies of your recent findings at hand. Because if things run bad, time is brain!