Back and forth movement

El

Hi Guys,

My 7 month old just started a weird habit. She moves back and forth, which scares the hell out of me. Of course i googled it and found out that its normal but also found that autistic babies can do it 😱🤮She does it more when shes excited about sth, or hears a song playing. Its also a short movement, like she ll move 2/3 times and she ll stop. While she does it she often moves her arms up and down as well - it really looks like a excitement about sth vs plain movement for no reason. I have never had any concerns about her development. She has been sitting unassisted since she was less than 6 months, she does say “dada”, if i ask her wheres her ducky her eyes go right where we keep it in the house. If i pull her hands while shes sitting she blocks her legs and goes straight to standing. Everything is going great except that weird movement that she started doing out of nowhere.

Do you guys notice anything like this with yr babies?