((I couldn't help but be a smart ass about this one. Techniqually there are no grammatical errors with that piece of writting. It's all punctuation and capitalization, which are two categories that are seperate from grammar. However, I believe this probably what you wanted it to look like...))

Pearl limped across the room painfully as if she had just broken her leg. From the look on her face she was in severe pain, although she hadn't done anything noticeable to it. She noticed someone look at her funny; she scowled.

"What are you looking at? Can't you see I'm hurt? Someone please help me!" she pleaded.