So we just found out last Thursday that our cat Rosie, who will be 2 in March, has a grade 2-3 heart murmur. The vet gave us medicine for her to take throughout her life, saying that it wouldn't cure it but would help keep it at bay. He didn't do any testing to determine the cause of the murmur but didn't seem to think it was necessary (which now after reading more about it I think I will do just in case it's something we can cure). He said that cats with heart murmurs should be kept out of stressful situations whenever possible, but unfortunately we are getting ready to move from NYC to Atlanta, GA in just one week. She and our other cat will be in the car with me, in a large carrier that fits both of them and their food and water and a small litter box. We'll be leaving around noon the first day, staying in a hotel, and getting to our new house around 2 PM the next day. The vet recommended putting a sheet over the carrier to keep them calm and not taking them out in the hotel room. Basically I am just sooo worried about this car ride because my poor Rosie has always been so traumatized by car rides. Our other car doesn't make a sound in the car, but Rosie pretty much screams the whole time. The vet said did not like the idea of giving her any sort of calming medicine, not sure why, but maybe he was afraid it would affect the heart issue more. Should I be worried about the stress of the car ride having a terrible effect on my Rosie!?