Update. Had the heart Cath yesterday. Both good and bad news. Good news - no blockages of any sorts, but my weight is causing issues as my heart can not process more than 1500 CC of fluid daily. The heart DR wants the knee replacement done ASAP so that I can start exersizing and start losing weight, he is also not happy with the amount of morphine I am on daily (another reason why he wants the knee replacement done like now).
Remember - at this point, I can not get on a bike until after I get the knee replacement done. The down-side of doing the knee replacement is the risk to my job, and the loss of income during the recoupiration time.