I am a long term sufferer of anxiety and since the turn of the year it has been one health related worry after another non-stop. Started last September with random dizziness, then anxiety over my urine, then acid reflux... Well, now I think this is the scariest symptom I've felt.

At about 9pm last evening I felt a heart palpitation. I know they happen occasionally and it's no big deal, but then it happened again a few minutes later and I started panicking. They only last a second or two but the "episodes" keep happening.

It is now 2:40am and they haven't stopped. They aren't constant but seem to happen at random intervals. I've never experienced more than one palpitation in a day so this is worrying me a lot.

As part of the dizziness last September I had two 24-hour ECGs. The only thing they brought up was a small period where my heart rate seemingly randomly went high for a brief period but the cardiologist was unconcerned.

Anyone have any experience with this? Advice? Just... anything to help me to stop freaking out that my heart is about to explode!