I have the same problem. The skipped beats (I called them my "skippy beats", lol) are either Premature Atrial Contractions (PACs) and/or Premature Ventricular Contractions (PVCs). PACs are benign, and more common than PVCs, so you don't really have to worry about them. If they're PVCs, they're typically benign, as well, but could be a sign of something more serious.
You can find more info on both at the links below:
en.wikipedia.org target="_blank" rel="external">en.wikipedia.org your own peace of mind, I would suggest you see a Cardiologist. Most likely, the doctor will have you wear something called a Holter Monitor for 24 hrs to see how your heart beats in a 24 hr period of time. If he/she finds you have PACs or PVCs, he/she will most likely prescribe something called a Beta Blocker which will both slow down your heart and keep it from skipping. I am on these right now, and they've really helped me out. I suffer from anxiety, too, and don't exercise as much as I should, AND I drink cola, so these are most likely the main contributing factors to my heart issues.
I am not a doctor, so don't take what I say as gospel, but I don't believe you really have to worry about it too much because chances are, it's benign. I would suggest, however, that you see a doctor, and in the meantime, work out a little bit. That way, your heart rate will go up and your heart will be accustomed to exercise so it won't have to work as hard when you make the slightest movement. Mind you, I need to take my own advice (lol), but from what my doctor told me, exercise, keeping away from caffeine, and trying not to let my anxiety get the best of me would all help to keep my fast and 'skippy beats' at bay.
Good luck and God Bless :)
