My dd is 11 weeks old and has been really out of sorts and clingy for the last few days. She's started dribbling a lot, sucking/gumming on her hands (or anything else that comes near her mouth) and rubbing at her face. Do you think she could be teething? I thought she was too young but I'm not sure what else it could be. Any advice on what I should be doing for her? I hate seeing her upset. She's normally such a happy little girl.