@Jezzer I'm so sorry to read this. It seems that your mum was not feeling too good today - I think that
@YorkshireLass 's suggestion that she may call out her own name because she hears it so much from the carers, is a good one. Nevertheless, not something you needed to happen when you felt unwell yourself. I honestly think that the heat (as well as stress) doesn't help those of us with heart problems.
I can really relate to your worry that you might not be able to see things through with your mum. I've had this worry for years, even before I knew I had a dicky ticker.....I used to say to my husband that I was sure mum would outlive me, and what then? As it happened, I had several hospitalisations, which meant that I absolutely couldn't visit mum for two lots of a couple of months at a time. It was awful.....mum didn't understand, but she had no idea how long I'd been away, and as we know, she survived
That didn't stop me counting the days, of course.....
Anyway I hope that your fears about the severity of the problem are unfounded. Again, I do know that horrible feeling of your heart pounding and skipping around....it's anxiety-inducing to say the least. But, fingers and toes crossed that it's a) not serious, or b) easily treated.
Sending you love and (((hugs)))
Lindy X