hectic

Short definition from Wiktionary

Adjective

1. 1
   Very busy with activity and confusion.
2. 2
   Denoting a type of fever accompanying consumption and similar wasting diseases, characterised by flushed cheeks and dry skin.
3. 3
   Pertaining to or symptomatic of such a fever.

Noun

1. 1
   A hectic fever.
2. 2
   A flush like one produced by such a fever.