I have, and continue, to experience intense die-off! And while I am not yet a complete success story, I have gone,in five months, largely because of getting rid of candida through diet and herbal anti-fungals, from being bed-ridden to almost walking 30 minutes a day and living a somewhat productive life. I have also gotten some help through acupuncture (one of the things they are treating is "dampness" which is pretty much the TCM description of candida.) But my candida was so bad that it was giving neurological problems, including stuttering! The stuttering is gone, only occasional "tremors" right now. Anyways, yes, die-off is real, and yes afterwards you feel much better (I go through detox cycles). When candida turns fungal, it can become a horrible disease which takes months, or even years, to completely eradicate. You can read about my journey with candida on my blog, http://theprofessorswife.blogspot.com/.