ANXIETY was   formed on July 10, 1998 and was formerly named NOISE TERROR.  NOISE TERROR played  DEATH GRIND  with Aan (vocals),  Fajar (guitars),  Tio (bass)  and Yon (drums).   NOISE TERROR  changed the formation because Aan (vocals) left out from the band.  Then,  the vocal position was placed by Fajar.  Tio (bass)  left out from the band, too.  Eko subtituted Tio in the bass position. 

        On October 18, 1999, NOISE TERROR  changed the name into  HELLSTORM.  The name of  HELLSTORM  was taken from one of song tittles from the foreign band.  HELLSTORM formerly   played  SPEED BRUTAL DEATH GRIND  with their own music concepts.  In April 2000, Angger  joined the vocal position with Fajar (guitar & vocal),  Eko (bass) and Yon (drums).  This formation started playing PATHOLOGICAL BRUTAL DEATH METAL.  Then, Yon (drums) left out from the band because his physic  condition problem.  After that, the formation were Angger (guitar & vocal), Eko (bass) and Fajar (drums). 

In last September 1999, Pier joined with this  band and  placed the vocal position.  The newest formation of HELLSTORM  : Fajar (drums), Eko (bass), Angger (guitar) and Pier (vocal).  This formation changed the music style into BRUTAL GRIND.

On August 23rd, 2002 HELLSTORM changed the name into ANXIETY