My 11 month old has started to bang her head on objects around the house. It started when she accidentally hit her head on the rocking chair, then she did it on purpose a couple times as if she was making sure that’s what she felt. Now I’ve seen her do it on the wall and pick up her little toy drum to do it too. All the google searches I tried linked it to being upset or frustrated but she’s never upset when she’s doing it. It’s like she like it, or she’s curious about head pain? I really don’t know. Anyone seen this before and know how to discourage it? So far I’ve just been saying no thank you and redirecting her. Thanks