If you are more than 40 days post heart attack on good medical therapy, the MADIT II trial supports an ICD if you have class II or III symptoms. I understand your desire to avoid a procedure, but your doctor is probably right.
Aside from medications and good living, there is not a natural approach to improve your heart function.
I hope this helps.
I should say that I do not have any symptoms. I've not had a problems since I had my MI in 99.
I do not have any symptoms and I have not had any problems since my MI in 99.