Palpitations

I’m suffering badly with heart palpitations especially when lying down in bed at night. Sometimes they go on for hours.! I’ve been to the ER several times over the years, they do a EKG and blood tests and always say all is fine.

I do suffer terribly with health anxiety and panic attacks but I feel like they are always dismissing me and I’m convinced something is seriously wrong with me and they are just missing it. I’m so scared, it’s all I think about. I’m terrified my hearts just gonna give up. Does anybody have any stories if a similar situation. Please please help. I’ve a 4 month old and sometimes I feel like I can’t go on because I’m always so anxious and panicky. It’s debilitating. I have therapy for ocd and health anxiety but this has not helped at all.