I know how that feel. I had a MVP since I had my daughter and born with a simple murmur.
Now I am suffering with flutters. I can't get upset about anything and since I was in an accident months later, three months....they come and go. I hate it. I HATE IT! You know you go with the normal everyday symptoms take your meds and before you know you can exercise good one day than next day your suffering flutters. A horrible thing. It is something you learn to live with. I guess. My doctor office said I was fine . In other words a second opinion cause having a MVP will make you have anxiety if you never had it. I do take a beta it has help in the past. I take Metoprolol( Toprol XL) but doctor do not recommend for everyone because of your liver. I take another med also. The one thing I learn in the pass before they became to out of hand was that less stress, six to eight hours of sleep, lay off coffee and chocolate. That how I had endure before my car wreak. It help. I work eight hour jobs to sometimes sixteen hours.
You know take in at least some walking at least three times a week or small time if you have that faint feeling, you know when the anxiety hit in your like Fred Sanford, " I hope its not the big one."
You know that my best advise other than see your doctor. Now after a car wreak and a neck injury IDK?
Clueless. My daughter 13 so I survive for this long. Enduring that big question. Flutters get on your nerves.............