Mama appears to have a blood clot in her back legs. She has a severe heart murmur and was recently placed on medication called Enacard. The medication mentions that weakness and lethargy are a side effect. She's been hobbling around and hasn't been walking around much. The emergency vet is about 30 minutes away and she freaks out during car rides. As soon as she gets in a car she starts panting and getting worked up. I can't decide if I should wait it out and take her in first thing in the morning to the local vet who's only a few miles away. Or if I should take her to the emergency vet now. I'm afraid that she'll become over-stressed on the car ride and will end up dying on the way. Right now she's eating fine and walking around a little bit. Her paws are still warm so I know there's still some cirulation going on. Does anyone have any experience with HCM and have similar problems?