Heart that is double dipping....???

I'm wondering what this means?  My dr. has told me as a result of having an EKG done, that my heart is double dipping.  I'm not sure what this means, or if it is something I need to be concerned with.  I have alot of other issues, but don't know if they are all related.  They are as follows: Swelling in my legs mostly, sometimes ankles, hands and seems like abdomen.  Chest pains, muscle twitching (not spasms), cloudy urine (not constant, but frequently), and occassionally blood and protein in the urine, only trace amounts.  There may be other things, but I can't think right now...

Anyone have any idea's, the dr's don't.....