Tough question. Maybe there's a doctor who can better answer it for you, but here's my two cents.
Assuming there is no contraindication between your medication and the psychedelic substance, you would still have to worry about the elevated stress placed on your heart and blood vessels. As you probably know, psychedelics can increase heart rate and blood pressure.
Definitely seek the opinion of a cardiologist. Perhaps you could do this anonymously online. Problem is, even a cardiologist likely won't have a verifiable answer, because there probably haven't been any tests done with psychedelics on patients with a history of infarction/angina. The answer will probably be something like "avoid elevated cardiovascular stress, and don't use illegal drugs."
Be careful
"If you're going to walk on thin ice, you might as well dance''