Accutane & hair loss

Hi Everyone,
I am a sufferer of Acne since i was 12 years old and i am reaching 26 this year. I had taken accutane at a low dosage (20mg/day) fr 1999-2003 (my dermatologist thought i should remained on it as long as i have acne) and had to stop due to unbearable hair loss..i have lost more than half of my hair now..I stopped taking it Mar 2003 and it has already been a year. Although my hair loss stopped during the period i came off it., i must say most of my lost hairs have never grown back :( and my hair has become drier now-seems like a permanent side-effects..Then in Mar 2004 i started on the Vit B5 from Evolution-X and had to come off it because my hair began to fall out again..:( Now i have stopped B5 for 2 months now..but hairs are still falling out although it is not as bad....
My concern is whether anyone out there is experiencing the same problem on hair loss due to accutane like i do..your lost hairs never regrown...seems to me something in our system responsible for hair regrowth is damaged by accutane...