Can you be a walk in for someone to give our cat a checkup? My kitty seems feeling not so good.

I would think you should utilize one of the many Vets that provide after hour care. D.F.L. is not what you are looking for.

I personally would advise you to go to Banfield pet hospital which has reasonable house and they do take walk ins. They are usually located inside PetSmart locations. I hope your kitty feels better!

I believe so.