@hopeful33250, @chi, @amandaburnett thank you for your helpful replies! I live about 20 minutes from the Mayo Clinic here in Jacksonville, Fl. I will stay in touch, since I'd like to leave a resolution, if I find one, and it is not offered here.
The artofliving article was interesting. The poses listed are almost the exact order of those I would cover in a normal hour-long practice. The inversion poses (such as head-stands, shoulder-stands) I have read are a strictly and obviously prohibited pose, as indicated in the timesofindia article. But the triangle pose I'm concerned about. The artofliving article describes it: "This is a heart-opening standing yoga posture, designed to promote cardiovascular exercise. The chest expands, when breathing deeply and rhythmically. It also increases stamina." Is that saying it may exert too much strain on your heart, or that it's good for rehab? Additionally, my experience with triangle pose pre-heart attack has been that I have occasional tingling in my hands or that my face is very red when I stand back upright from it. So is it just too intense for me?
As for the CBD oil, I was not given a reason why I needed to stop taking it, but it was definitely listed on my discharge papers to stop taking it. I have read that CBD can interfere with how your body metabolizes certain medications, such that there may be more or less of a medication active in your system than intended. Additionally, CBD is not FDA regulated, so there is no real way of knowing if the CBD dosage is consistent. Also, it falls into a debateably gray area, legally, so clinical research on its affects is limited at best. Couple these reasons with continuing to titrate my medications to lower my blood pressure every two weeks, and I can understand my cardiologist's concern. I'm already regularly dipping below 90 / 50 systolic / diastolic and below 45 resting bpm, so I wouldn't want to tempt any inconsistencies and risk going too low on my vitals. I've already been there with Entresto and it wasn't fun, but they switched me to losartan and I'm doing great.
So I met with my cardiologist again. He removed any limits I had with exercise, other than to continue avoiding shortness of breath or dizziness. He said I am doing great, and there should be no limits on yoga other than what I can't tolerate. He did say to gradually step into it, so we'll see how I do. I will follow up with my experiences, if I find any poses especially helpful or difficult.