my kitty has worms i think, they are small things that look like rice that comes out of her behind at night, can that kill her if not taken careof? Also she now pee's outside her litter box, not always but sometimes, could that be the reason why? Cause she never did that before, could there be a infection that is causing her to do that? I love my kitty, but now my mom wants her out cause she's not using the litter box. Please answer me soon cause I do love my kitty and I dont want her to be in pain or infected, and also I'm not going to give her up even though my mother wants her out due to her recent behavior, also is there a free clinic where I can get her spaded cause she is not right now, she is about 16 months old. Please write back thank you doctors, help a young child in need of saving his pet

Optional Information:
Age: 1; Female; Breed: cat

Already Tried:
???? store dewormers