HI, A FEW DAYS AGO OUT OF NOWHERE I STARTED EXPERIENCING SOB WHEN I GET UP FROM A SITTING POSITION AND WALK TO THE KITCHEN OR BATHROOM. I FEEL LIKE I RAN A MARATHON AND HAVE TO STOP TO CATCH MY BREATH. IT HAS ALSO BEEN CAUSING DIZZINESS,LIGH-HEADEDNESS,AND NAUSEA AT TIMES. I EVEN PASSED OUT FOR ABOUT TWO SECONDS OR SO. I HAVE A HISTORY OF TACHYCARDIA AND HIGH BLOOD PRESSURE AND AM OBESE.I AM ON HEART AND BP MEDS. I ALSO HAVE ANXIETY ATTACKS AT TIMES. THIS HIT ME OUT OF NOWHERE AND HAS BEEN GOING ON FOR 10DAYS. WHAT ON EARTH COULD IT BE?SCARED TO GO TO THE HOSPITAL.SCARED IT MIGHT BE SOMETHING REALLY BAD. OH, I AM ALSO AN ALCOHOL,WINE,BUT HAVE CUT WAY BACK AND CAN EVEN GO TWO WEEKS WITHOUT A DRINK.