I don't have any advice for you on the Atenolol because I have never needed it but will suggest that you watch your caffeine and carbohydrates. Address any stomach issues and make sure you have a slow warm up and cool down when you exercise. Maybe try and not push quite as hard for a while and build back up and see if that helps.
Thanks Michelle, I don't drink caffeine, only Green Tea may be one cup a day I don't believe their is much Caffeine in Green tea and follow Vegan diet from Dr. Esselstyn.This diet is more strict than Vegan no oils, no meat , no dairy products.
Healthy diets can be high in gas producing foods so just check on that and see if it makes a difference. Do you feel the need to burp a lot? If so you could have a lot of gas even if you don't necessarily feel bloated or indigestion. When you say no oils do you mean no olive oil or fish oil? I guess you wouldn't eat fish but olive oil is actually pretty good for the heart. I would try to not rule that kind of oil out of your diet completely. Also you are still getting caffeine from the green tea. Here is a break down of the amounts based on the drink.
White Tea 30-55 mg
Green Tea 35-70 mg
Oolong Tea 50-75 mg
Black Tea 60-90 mg
Coffee 150-200 mg
Your green tea is pretty low but I usually find that if I have a small amount of caffeine it will usually cause issues pretty close to when I had it but not last the whole day. Well over all it sounds like you are doing a great job living a heart healthy lifestyle but considering you did have a heart attack just be mindful of your pvcs and see a doctor if they get worse as you age. Take care.
Oh I see you mention in your first post you are wearing a monitor now. That should give the doctor a good idea if there is anything concerning going on considering your previous health history. Do keep us posted on your results and what the doctor says.