to start seeing withdrawel symptoms from xanax>? i just started taking it every once n a white like 1 mg at most probably. and i have read so many stories of people going through hell and whatnot. but it seems to help my panic and anxiety tremendously.. i dont wanna become some feind for it or somthing or have siezures... what would u say would be average to start having all this crap ? months years? and how fast does tolerance build up usually?