Your drug list makes me shudder!
I have only one comment. A leg edema that is resistant to furosemide is probably caused by the channel blocker, in your case, the diltiazem.
I'd take the ACE inhibitor in the morning becasue most of our stress and physical exertion occurs during the day.
Okay 2 comments

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Ask your doctor what he thinks of sotalol, a beta blocker...it's often touted as the first line of defense for a-fib. I have a friend who does very well with it and has avoided ablation becasue of sotalol.