I think my cat may be hurt please help!?

last night i took my cat out on her harness and leash just to get a little fresh air and my sister moved a patio chair and she freaked out and started jumping and going crazy. she literally looked like a fish out of water. she was flipping and landing on the cement. i took her inside n felt her all over to check for signs of sensitivity but she didnt react. but today she has been very mild and subdued (shes usually playful and silly) and i dont know if shes hurt or bruised or what please help. btw she had no cuts either. no swelling either i dont think