A-Fib everyday life

  I am a 27 year old male who up until 2 1/2 years ago was very active and
  in excellent shape.  One summer when I happened to be working very hard in
  extreme heat, I started feeling progressively worse to the point that I
  couldn't work out without feeling lousy.  I saw a couple of Dr's, got a
  physical etc. and everything was normal.  I decided to go back to working
  out, and during my first excersise (leg extensions) I went into A-fib.  I
  converted on my own in about 24 hours and was sent home as the tests were
  normal.  I continued to feel bad and had a fear of working out.  I am currently
  in the care of a cardiologist who has found nothing wrong with me.  I also
  saw two other cardiologists and between the 4 Dr.s, 2 stress tests, several
  Echocardiograms, one Injection Fraction test, nothing has turned up.  I have
  had one other bout of A-Fib in this time a year after my first and 1 1/2 ago.
  The second one happened in the middle of the night and was due to getting sick
  from drinking too much that night.  I have been on and off of tenormin and am
  currently taking 25mg daily.  Finally, I had a tilt table test and passed out
  after a few minutes of standing.  My Dr. determined that Dehydration was the
  cause of all my problems.  I now drink at least 100 oz. of water a day.  My
  question is, if all tests done on my heart have been normal, could there be
  something they are missing and even more, could there be something else not
  related to my heart causing my problems?  My daily symptoms include being
  tired and weak, Dizziness, blurred vision, Nausea, Numbness in extremities,
  Frequent Urination, headaches among other things.  Since all this started, I have not
  felt like my old self even one day.  Thanks for any help you can give.  
                                                    

[CCF CARDIO MD APS]

_
Dear Tod,
It is very highly unlikely that your cardiologist is "missing" anything; as you may already know there are a number of young patients like yourself who have Afib and no cause is ever found, although of course alcohol binges are "famous"
causes of transient a.fib (which would explain your second bout.)
As for the dizziness, weakness, nausea, etc., these are highly unlikely related to your heart in any way, however they could be related to the medication(s) that  you take (?beta blockers).  The frequent urination is most likely due to the high daily fluid intake, however it might be best to have this amalgamation of symtoms (symptoms) evaluted by a general internist and not the cardiologist.
I hope this information is useful. Information provided in the heart forum is for
general purposes only.  Only your physician can provided specific diagnoses and therapies.
Feel free to write back with further questions. Good luck!
If you would like to make an appointment at the Cleveland Clinic Heart Center, please
call 1-800-CCF-CARE or inquire online by using the Heart Center website at
www.ccf.org/heartcenter. The Heart Center website contains a directory of the
cardiology staff that can be used to select the physician best suited to address your
cardiac problem.