I know how scary this is, but I wanted to let you know that my dad had a cardiac cath many years ago, and he was like a new man afterword. He had become really grumpy and ill tempered over the years, which must have been caused by the heart problem, because after the surgery, he got his joy of life back, and was a real sweetheart from then on.

Big hugs to you. I know you're going to make it up those hills!