I should point out that I've only once accidentally even experienced any opiate withdrawal and that was simply from forgetting to take a methadone dose
one day. I just felt like I feel on a bad day anyway, but I'm sure I wasn't into full blown withdrawal yet. I use methadone to control the symptoms of crohns disease which can include nausea, vomiting, diarrhea, feeling weak and tired and also insomnia. I've been using it for 6 years and it was a miracle drug for me when I found it.