Hi, I’ve had palpitations for 3 yrs (started @ 25 now 28) EKG, echo & Holter all normal. I was prescribed metoprolol 50mg/day then & everything’s been great up until 5 months ago. Palpitations came back stronger, brought occasional flutter, and pain in chest, neck, back of head & arms and everyday! EKG & holter completed again this yr & normal no significant change from 3 yrs ago but I feel a lot worse. I’m tired all the time now too, but was told that’s probably a side effect of the higher meds 75mg/day as of 2 months ago. I’ve seen 2 cardiologists and both said my age and family history don’t put me at risk for anything heart related yet nobody can explain why any of my symptoms keep happening. I feel uneasy everyday not knowing what’s causing this.