Detravitis?

...but, what did that mean? Sierra barely had a second to wonder this. After that second, she felt herself quickly being pulled off the ground and into the air. She wasn't nervous. She flew all the time. Granted it wasn't quite like this, but she still flew a lot--and higher than this, too. At first, she just sort of floated around, getting a feel for her new way of traveling around.

...but then it was time to get down to business. She watched the blue and yellow blurs zooming around the room. She secured the glove on her hand and started flying toward the, imagining they were a bludger or a quaffle. no, just a quaffle. She might smack it if she pictured it as a bludger.

Merlin, these things were harder to catch than she thought!