Oh yes! I have felt this many many times! One thing I've learned is that you need to stop paying so much attention to your heart. I know - it's hard! I still catch myself checking my heart rate and have to force myself to stop. I used to be really bad at this but I told myself I was going to not check it for a week and prove to myself that nothing would happen. And, sure enough, I was right. In fact, checking it less, actually made it stop feeling funky. I think it's because the more we pay attention to a symptom, the worse it gets. Try to prove to yourself that it's ok by not monitoring it all the time. You will be ok! I also get the shortness of breath, but again, it gets worse the more I pay attention to it.
You are stronger than you feel - I promise! Hang in there!!
