in a whirl
1. In a preoccupied, disconnected, or unfocused state of mind. I was in a whirl leaving the doctor's office, unable to come to grips with the diagnosis she had just given me. The actor says he has been in a whirl following the overwhelming positive reaction to his latest film.
2. In a state of intense, chaotic activity. For all the build up to Christmas each year, I find that it always goes by in a whirl and is suddenly over before you know it.