<human>: Provide a brief overview of the text.

Hello! I took in my adorable stray Joey when he was almost 4 weeks old and he is now about 6 weeks. He gets along magnificently with my other older kitten Phoebe (who's almost 5 months), eats well, is (finally) litter box trained and can go on his own, and sleeps/naps normally as far as I can tell... 

I took him for his first vet visit (besides the check he received when he was initially taken in by a different vet) and the vet seemed to think he was healthy and such but he was too young to get any testing or vaccines done. I only notice now in the last few days that Joey seems to be drinking pretty regularly from his water dish. My other cat drinks from it maybe once or twice a day that I catch her but I see Joey drinking upwards of 4, 5 times a day. They both eat FancyFeast primarily and can snack on Taste of the Wild dry throughout the day if that's any help. 

Is it possible that I have something to be concerned about (diabetes, etc) or is it equally likely that I just have a well-hydrated little guy? Thanks in advance (and sorry for the wall of text).
<bot>: 6 week old kitten drinks noticeably more than other cat (who drinks "normal amount" for cat) - could this be a problem?