Ah, yes, I remember your earlier post on the subject.
As I recall, a couple of suggestions were offered and so I’d like to ask if you were able to follow up on those before we rule them out.
Assuming you have followed up on the above, I would like to suggest that you do indeed follow up with your GP but present is as just that i.e. ED and not relate it to stroke.
The reason why I say that is because this is not exclusively a stroke related problem and in fact most men occasionally fail to get or keep an erection.
There is some information on the NHS website.