Recent heart discoveries, fish oil & garlic possible side effects with my current meds- Please help!

I just found out my heart has a low ejection fraction and that I have fluid around my heart. My Cardiac Catheterization showed no problems with the veins, etc. They put me on a water pill and a blood pressure medicine to ease (and possibly partially heal) the heart issues. I heard that Fish oil and Garlic pills are good for your heart. On some of the website for fish oil they mention a possible reaction with diuretics... can I take both Fish oil and garlic to help my heart naturally along with all my previous and new medications? Thanks!

[Cleveland Clinic]

Fish oils and in particular omega 3 fatty acids have been shown to have a benefit, primarily through a decrease in arrhythmic deaths for patients with coronary artery disease. You don't have it , and probably suffer from a dilated cardiomyopathy, but it may also affect patient in you circumstance positively. Garlic has never been shown to be beneficial. In short I would recommend taking medications which have a proven mortallity benefit such as beta blockers, ace inhibitors, and aspirin, and others which may improve your symptom such as diuretics ( water pills).