I have a cat about 10 yrs old....was fixed before I adopted her 4 yrs ago.....she lived under my porch for 2 of those years...then came to live in basement and hall of my duplex..(i'm alergic to have in home) she became very good, tame and friendly...only moaned once and awhile and always for 10 min or so and quit....she goes outside once in awhile w/my dog too...now i moved, took her too...she has better basement to live in and lots of toys and more outside time and freedom....she just strated moaning every morning about 3am and will not stop for hours...what's up?????what can i do?????i can't sleep.....