Urgent cat question?

I was taking a nap and when I woke up I saw that my cat was on top of my moms new blanket and the cat was kneading on the blanket and her nails were scratching through it so I immediately pushed the cat off the bed and when my hand pushed her she did a meow sound not very loud but louder then how she normally meows. I'm not gonna lie I did push her pretty hard and I pushed her near the ribs. I'm now concerned because I'm afraid I might have hurt something because of how she meowed. She seems ok now but I feel guilty if I hurt her lungs or something.