Weird feeling in chest while i was taking a shower like fluttering or skipped beat, no pain , no trouble breathing, just very anxious about that feeling, it pass right away but i'm still anxious. what can it be?

We all experience abnormal heart beats from time to time. The most common one is a premature ventricular contraction where the ventricle of the heart beats a little early in the normal cycle. This can happen without symptoms but sometimes people feel them in the way you describe. If you continue to have these symptoms, see your doctor as a 24 hour monitor can help diagnose this. Good luck to you!

Your question does not mention whether this is recurrent or has only happened once. It is wise to have yourself examined by your physician to rule out premature contractions. If this feeling of fluttering only occurs on rare occasions, you may need a heart monitor. The initial step should be a complete history and examination by your doctor to see if further testing is needed. Good luck.