It sounds almost as silly as my mom's mom worrying about her cholesterol the doctor got her worked up about it, at her age and health and her physical shape we the family knew it was almost a joke, if she did die of a heart attach, we figured it MIGHT shorten her life by 2 or 3 weeks tops. Not enough to worry about and not enjoy life. quality of life means something also, if your not enjoying it and worrying you might as well die today after arraigning the funeral....My mother was dying of cancer (it spread) and refused to take her morphine pills because she didn't want to become an addict. That was my mother the worrier ,in a nutshell.
Thankfully I didn't inherit a full dose of worrier-itis from her. Mainly I worry about other people and wish I could heal them someway. Too much empathy can be painful to the person with it. Ask me.