We adopted a cat last year from a rescue that the city pound feeds into. She was on their euthanasia list for a respiratory infection and herpes of the eye (one eye) that went with the Resp Inf. Otherwise, she was healthy and her leukemia, other blood tests were negative. I took her to the vet last fall when we got her as a kitten and she was given high powered meds (L-Lysine, eye drops, antibiotics, etc) and she has been healthy since. But, she constantly acts thirsty. She will even go into the tub and drink from the spout. If I pour from the Brita filter pitcher, she's starting to drink from the stream before it even hits her bowl. We live in Houston, where temperatures reach 107 every day on our thermometers. Could it just be the heat? She is indoors only, never has been outside.