Freaking out...our Cavie has just been to the vets to have routine dental treatment and they've advised against doing it because they say has a grade 3 heart murmur. He's almost 7 years old and was at the vets last month and his heart was fine and always has been.
Can it really go from fine to grade 3 in a month and if so does that mean it's something more sinister and he'll deteriorate rapidly?
He's booked in to have an ultra sound next week. I'm in bits.