Hello,
I get episodes of a very fast heart rate which generally have been less frequent. But last night I woke up and got out of bed, and then had a racing heart of 150 according to my Apple Watch and I felt uncomfortable and anxious. I’ve had this a few times before but not for months. Once I lay down it went away. I have a cold at the moment and wondered if anyone noticed heart symptoms get worse when you are unwell? I get Svt and have done since catching ‘that virus’ at the start of the year