Lola:
I have trained as a nurse. Your sister should be immediately taken to the ER to rule out the possiblility of a stroke or a heart attack. Yes, it is rare in young people but it does happen. I know personally of two cases where it happened to young people in their 20's. With your sisters heart history this would be of even more concern. I can't believe your doctor told you to wait! He is not a good doctor. Given your sister's history, he should have sent you to the ER immediately with those symptoms. If a stroke is ruled out, a neurological exam can be scheduled. (They would probably do this in the ER anyway, before releasing her). The important thing is the sooner she is treated the more the damage can be mitigated. Time is of the essence. Even if her symptoms have gone away this can be a symptom of a greater attack being iminent. Again, this can be prevented with immediate treatment. Let us know what happens.
Cog