I woke up at 3am and my heart started racing madly. It was like I had just ran a sprint. I then had a weird feeling and then it happened again about 10 mins later and then a short one after that. Then I had a burning sensation, like heartburn to the left.
I was really, really scared. At first I thought OMG I am having a panic attack, but I am not worried about anything or I wasn't panicking about anything at the time aside from the racing heart.
I couldn't get back to sleep and now I am really worried about what this was.