Sophie invented a new trick yesterday. She pulls her upper lip into her mouth with her tongue and sucks on it - tongue sticking out of her mouth. It doesn't seem like a good habit to me, but at the same time, it's a way for her to self-soothe. I'm afraid she's going to get a hickey on her upper lip, or a really bad chapped lip or something.
We noticed it yesterday afternoon, and every time she woke up in the night, or every time I put her back to sleep at night, I could hear her sucking her lip. She also just does it randomly if she feels like sucking.
What do you think???