Maybe it's the noise it makes while it moves , it may look like something about to attack her awww
@Sugar my daughter is terrified of the push vacuum and the robot vacuum…
is just a phase, my little one loves the vacuum but he had a phase where he was scared of my hair dryer 😂
She was at first because she saw the cat run from it but then I started clapping and being happy while vacuuming and now she doesn’t mind haha
Asked heal baby care app and sharing in case it helps: "It's quite common for babies to be afraid of loud noises, like a vacuum cleaner. The sound can be startling and overwhelming for them, especially if they are sensitive to noise. To help your baby feel more comfortable, try vacuuming when she's not in the same room or use a quieter vacuum if possible. You might also consider introducing her to the vacuum in a calm way when it's turned off, allowing her to explore it at her own pace. Have you noticed if she reacts similarly to other loud noises, or is it just the vacuum?"
My son loooves the vacuum. I don't understand it .he growls with it from the time I start until I stop 🤦🏾♀️.