My cat Christmas was well this afternoon. When my mum came home,she carried her awhile and she whined (It was common as she want to come down). But the whining did not stop. Normally,it would stop but today she whined as if in pain for the whole night. If someone is not looking at her,she whines loudly till someone came and accompany her. Her diet is still in good shape. She eats and drinks. So far she had not poop but she had pee. Whenever we touch her lower part,mostly her hind legs and tail,she gives out this gu-gu sound. Not purring. More like whining in a deep soft tone. Help!? Physically I don't see anything wrong. She only started suddenly today. Oh and she always seems to be lying on the floor with her butt abit higher. Her lower part twiches constantly as if she needs to poop. She also spreads her legs and stretches them. Other than that,whenever I give her a treat she is quite active and alert. Thanks! God bless u guys !