my kitty is not sittin correctly...:( plz help

SHe is still young for it, but your kitty is in heat, which means she is lookng for a mate already. She sticks her rear up in the air to show the male cats she is wanting to mate. You must be very careful not to let her out as she will certainly come back pregnant, which would be a disaster for her as she is so young. Make an appointment with the vet to get her spayed as soon as possible.

While she's the right age to be in heat if she's not spayed, white sticky discharge is not normal and she needs to see a vet asap.

Can you borrow a crate from a friend? Or perhaps phone the vet and they will let you hire one for the day? 

i took her to vet.. n they dewormed her,, n given some antiboitics....

she was wel in a day.. got her meds for three days..

den again in november she had same prob,, again took her to vet n same meds....

and even vet cant understand wats her prob...

as u said she is in heat.. but i this she is nt coz she dnt go outside at all when she havin this prob,, n she just come home wen any male cat comes,,, i been fending of that guy for long...even got dogs for that purpose,, yet ...

anyway she is now ok.. joyful n playing do as she is ok,, but she lost weight,, i can see her bones.. i asked vet.. she said,, feed her commercial food,, n i bought whiskas,, she just smell n gone off,, my dogs eat whiskas happilym but not my cat,,:2

i told this to vet,, she said feed her curd rice or any,, i tried all,, but she not eat except meat,,, i want her to gain weight n yet,,

my cat is not any breed she just stray cat breed,, she came to me when she was so small i mean in kitten now she almost 7months old;;;

thanks for reply

Cats come into heat regardless of if they go out or not.  It's high time to get her spayed.  Cats that are not spayed run the risk of pyometra (infection of the uterus) and breast cancer, both of which are very serious and expensive to treat.