What is going on🤷🏻‍♀️

Okay so I’ll start off with we live in a very very very old house like early 1900s and I was told it used to be a doctors office. Well in the past few months that we have lived here there has been strange things happen..like hearing a baby laughing when my daughter isn’t even here and all of the TVs are off. Well in the past week my daughter she’s almost two has started pointing at the pictures we have hanging up of my her grandpa..husbands dad he died when my husband was 5. She will point to it and act like she is talking to it. Now her bedroom door will open up by itself in the middle of the day. She doesn’t sleep through the night like she had been. She wakes up and screams and runs to our room. (She’s in a toddler bed) so I’ve never been one to believe in ghosts although I do have an open mind..I’m not sure what to think🤷🏻‍♀️ am I crazy