It sounds to me that you are doing what Cardiologists would suggest to you. If you are having trouble with a gradient, I'd be hammering my Cardiologist for another stress test. I know nothing other than my own experiences, and that would be a tip-off to me that I may be getting another blockage. Do you have trouble getting your breath when on a gradient?
Best wishes.
I don't want to spend any time from my life with worrying ...was told by a nurse in a hospital I have at least 15 years to live ,it was 4 years ago. I think she was unprofessional to say that, but I am not a person who would care about that much long, back then bothered me a little. I do my best, that’s all I can do, and in the meantime might as well just enjoy my life. I am 57. If I have 10 years more great, if 13 even better.:) After 70 every year is a bonus............
What can you do? Exercise more. Are you a vegetarian by choice or only don’t eat meat because of your heart? Do you fallow a healthy vegetarian diet? I think every single bite we eat is count, right eating is the key to longer life...and we must be sure not only think is right, but know for sure what is right and…. exercise....exercise...exercise....you can increase it slowly, my EF went from 20 to normal ....................but to be able to exercise you need to eat well…cant miss on any important nutrition………..
Good luck ,welcome in the 20 % ……..