I had a severe episode of PACs about 10 years ago. My heart seemed to be skipping up to 10 beats a minute. I was under a lot of stress, I was taking dristan for my sinuses, I had a fairly heavy work out and drank several cups of tea that evening. It happened shortly after I went to bed. It woke me up and I thought I was having a heart attack. My wife drove me to emergency and they put me on a monitor. They did a few tests, said I had normal arithmia. It settled down some as I relaxed and they sent me home with instructions to see my family doctor. My family doctor sent me for a stress test with a local heart specialist. When I saw the specialist about a week later I still had the arithmia but when he put me on the tread mill it went away almost right away. He recommended I eliminate all stimulants (coffee, tea, decongestents, anthistamines, chocolate, etc.). I imediately followed his advise. The arithmia kept coming and going for about a year but gradually went away. I still abstain from all stimulants and I have not had any sign of arithmia since.