For the past 6 months or so, I have been experiencing chest tightness, pain, and a hard beating heart at night, and occasionally during the day. It starts particularly when I am laying down, and it isn't relieved by getting up. During this time, I also experience episodes where my heart's rhythm goes out of whack, and it feels like my heart flutters, stops, and then flutters again. I went to the emergency room in December because my heart rate was 120bpm, I was having chest pain, and the abnormal rhythm was occuring and it worried me. I was sent home because by the time I got in to see the doctor, the symptoms had subsided and they had nothing to assess (approx. 6 hours later). The doctor told me that likely the "fluttering" sensation I was feeling was premature ventricular contractions, and that they can be normal. My GP also passed them off, suggesting that it's normal and I shouldn't worry.
A little background on me, I suppose. I eat very healthy, and I drink a lot of water. I don't have any caffeinated products after about 3pm. I don't exercise as much as I should, but when I do exercise it is always in the morning, long before these problems start. I'm not on any medications. I don't suffer from anxiety attacks. These problems come along seemingly unprovoked when I go to bed, and cause me to lay awake in bed until around 3am or so (I go to bed between 10-11pm). I really don't know what I can do, and I'm not sure that this is "normal".
Any ideas?