Sara - it sounds like you are exactly where I was three years ago when I was first diagnosed with ectopic heartbeats. I too was stricken with panic attacks, terrified I was about to drop dead, afraid to go to sleep because I though I would die in the night - paralysed with anxiety is how I would describe it. I took the kids to school and then spent the rest of the day on the settee afraid to move. If I went to the loo, I took my mobile in case I had to call my husband (or an ambulance, I suppose).
It has taken a while but gradually I got better. It is very hard to accept what we are told by doctors sometimes, because the idea that we are 'ill' is very deep-seated. If you have had all the tests and your doctors say you are okay, then you have to remember that:
- palpitations/missed beats/ectopics/pvc's are harmless if your heart is structurally normal (the tests would show this)
statistically, people with the above are not at any higher risk of sudden death or heart attack than anyone else.
in a big research programme, 80% of the people checked randomly had pvc's during a 24 hour period - it was just that most of them didn't feel them.
many people have thousands of these pvc's, ectopics, missed beats a day (I get hundreds when I get them) and have been like this for years without ill-effect.
I think you need to start looking at ways to deal with the anxiety (which may well be adding to the palpitations). I found Claire Weekes "Self Help for Your Nerves" book very helpful - carried it everywhere. I printed off RLR's responses that I found useful and would re-read them when necessary. I printed off these anxiety coping statements to read when necessary:
http://www.anxietynetwork.com/helpcope.html#helpcop1
I read David Burn's "Feeling Good - the New Mood Therapy", which I found useful.
I gave up caffeine - no cola, just decaff tea and coffee now. Definitely avoid energy drinks. Many people find their palpitations are affected by eating - follow RLR's advice and have smaller, lighter meals, don't eat heavily near bedtime. I found being hungry and tired made me more anxious, so avoid getting like that - hard when you can't sleep at night, I know.
It's difficult I know, but things will get better. Best wishes.