Our Ella, until a few days ago, has been in good health. She's three years old and I must say very shy; no one has seen her only us! Well all of a sudden her tail has drooped to the ground and is never up for example when she is happy, playing, ready to eat, etc. Her litter box is in good shape and she doesn't seen to be in any discomfort. Any suggestions or do you think a trip to the vet is in order? Thanks very much.