Hi, may I answer your health queries right now ? Please type your query here...- have been having a fluttering feeling in my chest. Sometimes in the middle of the night, in the morning upon waking and now its been during the day too. For the past few weeks, I now have episodes that feel like my heart stops, I can t take a breath, and then about 5-10 seconds later it starts again. I had a PDA repaired 36 years ago at age 6 weeks old. Is this a heart issue that I need to worry about?