After culturing Espie's urine sample for three days, my vet found no bacteria. So I guess that means the Baytril we gave her in December got rid of her earlier urinary tract infection. I've probably been overreacting a bit by thinking she's gotten it back whenever she seems kind of quiet or a little less active. She's almost three years old now. Thanks to everyone who sent or posted information about this condition. Linda [Posted in FML issue 1478]