Chloe is now almost 5 months old. This past week I've noticed that I'm filling up her water bowl more often than normal. Normally I fill it to the rim when I go to bed at night and by the next night it still has 1/4 - 1/2 left in it so I top it off. For about the last week I've been completely filling it every night and sometimes do it earlier in the day because I notice it's empty. Tonight I went in and it was empty and I filled it. Less than 5 minutes later she had already drank about 1/3 of it. She also drinks from the little puddles left in the shower (even though I shoo her out when i catch her.) I'm thinking it warrants a call to the vets office, but am trying to avoid the cost of lab work. She had complete labwork done before I got her 2 months ago saying she was healthy. What do you think? Nothing in her feeding habits has changed in 3 weeks - just dry food with a treat of the boxed cat's milk once a week.