My 5 week old Americauna was outside and she suddenly cried out and shook her head. She shook it once more and now I took her inside and she seems to be really spitty in her mouth. She seemed to trip a little, but her walking is fine. I see a piece of grass in her mouth, but she doesn't seem to be choking because she's not holding up her head and trying to swallow. She occasionally opens her mouth and her mouth is really spitty. What is wrong? Is she choking??