I just started a water fast to improve heart function

I am a 56 yr old male with a variety of health issues that afflict a good percentage of the population. I have psoriasis, congestive heart failure, high blood pressure, edema, gout, carpel tunnel and a few more minor ailments. But other than that I am great! I have a lot of difficulty breathing especially at bedtime where I have to be propped up, and I am overweight currently at 270 lbs. My height is 5’10”. My past ailments include asthma which hasn’t bothered me for the past 20 years, sarcoidosis which had me in hospital and off work for 3 months. Oh, and throw in a couple of bouts with pneumonia and pleurisy.

I did a fast last year (2010) but quit after 21 days when I should have carried on with it. The reason I quit was because I wasn’t educated enough to recognize some of the side effects that could occur when one undertakes such a long cleansing process. I went back to my old ways and in fact I am now in worse shape than when I started a year ago.
Why am I doing this? It is not to simply shed the weight. More important is my heart and the fact that I can’t go up a flight of stairs without being winded and in need of rest. I can’t carry out any type of physical labor or sports /activities and I am a prime candidate for a heart attack.

I just started another fast and I hope to see improvement in many of my ailments.