This past weekend, model ADRIANA LIMA announced she was separating from her husband.  And yesterday, we nearly saw her HEAD separating from her BODY.

Adriana was in New York City filming a Maybelline commercial.  And in between takes, the paparazzi filmed her as she walked around her trailer.  But as she walked around the bus, she accidentally slammed her head into its mirror.

She fell back, and it looked like it hurt . . . BAD . . . but she quickly composed herself, and ducked inside the trailer.