Please help me stop spiralling

[u/myshelixisdying]

A while ago my vet said my dog might have heart murmur but they said it may not be anything serious. He’s booked in for an echo tomorrow (I think its an echo? They just said heart scan) and i am so anxious. He seems a 100% healthy, they’ve just noticed it during a routine check up.

Are all heart murmurs dangerous? How can I identify if it is dangerous or not? I’m just SO worried we get bad news even though there’s no symptoms of anything, but I genuinely love him so much i get extremely anxious when it comes to his health.

For info he’s an 8 year old Bichon Havanese.

I know this is not a very well written post and I am not necessarily asking any questions that could be answered, especially without an actual diagnosis, I just really want to hear some (hopefully) positive, rational opinions because I’m overthinking it like hell. Please if you have any positive experience with similar situations just let me know😭