The past few months I have had worsening periods of lightheadedness and almost passing out (I've been having problems with this for years... it's just getting to where it's interfering with my life), which is much worse when I'm at Mass (I imagine the changes in positions, ie standing, sitting, and kneeling, aren't helping). Plus, I have been so terribly exhausted that I have trouble getting out of bed most mornings... some days, I've slept most of the day. There have been several other distressing symptoms, and I have been referred to a cardiologist.
I have been failing miserably not worrying. I'm sure most people experiencing what I have been would be very worried, too, but to paraphrase from St. Matthew Ch 6, who, by worrying, can add a day to their life? If only I could actually start believing that..