Whenever I wear pajamas or sometimes when I'm sitting down, she would start to tug on my pajamas I think it almost ripped. She would make this growling sound along with it too. I had to pick her up in order to stop her. I tried to say NO in a firm voice, but she just continued tug it aggressively. I even tried yelping, but she didn't stop. Sometimes when I hand her her chew toy, she doesn't want it either.. What can I do?