I have WPW. Had an ablation 2 yrs ago. Lately I ve had alot of palpitations and SVT. Diastolic been little higher than my normal of mid 80s to low 90s. Have had chest tightness n pressure for months with low O2 stats n on 2L of O2 at home. Been in n out of ER with a few, overnights for monitoring but they say I m fine. But I just cant get rid of this chest tightness and pressure and cough. They say my lungs sound clear.