urgent cat problems

Question
my cat is about 7 months old and seems to be having serious pain... she is continuously crying  and hunching or crouching her back... it seems like maybe stomach pain because when i lay her flat on her back and support her back and rub her head she seems to calm down. she has drank water and i believe she's eaten...she just went pee and im not sure how long its been since she's gone number two...she's been sleeping so it maybe even seems like something that comes and goes but i think that's maybe unlikely... please respond asap cuz im not sure if i should wait till monday to see a vet or go to an ER vet. thank yo

Answer
Hi Brittany,

If she seems to be in a lot of pain I think I would get her in to the vet as soon as possible.  She may just have a constipation problem (which could lead to megacolon if not treated) or she may have swallowed something that has obstructed her.  Is she also vomiting?  You said she drank some water but has she eaten lately?  I think I would go ahead and get her in pretty soon if she's really in that much pain, it could be something that is serious but easily fixed if caught early.