My Naso Tang

[BlueTang<3]

So today i noticed my Naso Tang seemed a little funny. Once i turned the lights on i noticed see was darting from side to side and pushing her lips out( as if she where talking) and hitting the glass. She has been doing this for about half hour now and i want to now what might be the problem. We have a 180 gallon reef tank. We have been moving the fish in and corals in the past few days so we thought maybe tat upset her. IF you have any ideas please let us know!