rootinier

Definitely DNS. facebook.com might be in your local dns cache.

nslookup www.facebook.com 8.8.8.8 Server: 8.8.8.8 Address: 8.8.8.8#53

* server can't find www.facebook.com: SERVFAIL

If it helps, I can completely understand your feelings. It's the same for me. If there are more palpitations "than usual", I lose my concentration and start thinking whether I should pay the ER a visit. All the best to you.

Yup, I was once misdiagnosed with Brugada syndrome by a young doctor. That really didn't help in making me more self conscious about my heart.

Thank you.

Yup. Hypochondria is what they told me as well. But in my opinion, most of the doctors don't experience this on their own, they read it in books and studies. That's why they often can't really help you.

Not so sure. Palpitations are often nothing serious, but what I heard is that not feeling your heart beat is normal. Except when you exercise hard. I feel my heart pumping when I lay in bed an my pulse is 60-70 bpm.

Fast, constant and rhythmical heart beats are nothing I worry about. Extrasystoles are pretty much one heart beat out of the normal rhythm (coming from the ventricle in my case), followed by a pause (compensatory pause). Your heart basically stops for one beat, and then resumes. And this pause feels really uncool.

Wow, I'm surprised how many replied and have similar experiences. There are a few things I'd like to add, because I did learn some things in the last 7 years since it started.

- Cognitive-behavioral therapy did not work for me. The thing is, as soon as your heart wants your attention, you're submissive. I talked a lot with psychologists, but it didn't get better.

- Running to the ER and being dismissed with good blood samples helps. But only for a limited time.

- Stress is very bad. Not long ago I had a very arduous business call with a former co-worker and I felt one extrasystole after another. As if my heart would want me to calm down ;)

- SSRI (e.g. Escitaloprame) are really powerful. They did not cure my extrasystoles, but they prevented things like panic attacks. Side effects are note worthy though, you pretty much lose a lot of your sexual energy.

- and if you're into medicine, SSRI may also produce new cardiac problems, such as QT-interval prolongation. It's a vicious circle.

In the end, I think, the heart is much, much more than a muscle. I always hope that someday I'll find a doctor who gives me the answer I'm searching for so long, what exactly is causing all this.

Yeah, my potassium is not constantly low. It's great and sad to hear that there are people out there with similar issues. I also feel my heartbeat effectively all the time. Caffeine makes it worse, so does alcohol. I stopped drinking alcohol, it made it a tiny bit better.