Hi Vinny,
I've had plenty of caths done in the past and they are nothing to worry about. A bit of a sore groin from the post procedure weight they use to stem the flow but that's about it (if that's the way they enter).
I'm only 35 and have had 12 years of heart failure culminating in a heart transplant a couple of years ago. I'm healthy as now, very active and loving life. In fact I now compete the world transplant games in swimming
.
No matter what the results show good (fingers crossed) or bad I'm sure that you will pull through with flying colours. Stay positive and good luck!
cheers,