Not exactly and sortof.
I'm having, temporarily (end of today, tomorrow only) to substitute a benzo as my anticonvulsant, as I needed to use both said benzo and the last chlormethiazole I had, to knock myself senseless, or try to, at about 7am, when I was woken up by the last scraps of pain medication wearing off, and I had to improvize, having gotten a lay off a friend of mine.
So no morphine, oxy, chlormethiazole, but had bought 7 10-strips of 5mg methadone, extracted it and prepared it for IM use, Had 200mg today, feel alright, no WD, no physical pain from my joints, although my arse is a bit sore from sitting down on a crappy chair.
Methadone is long acting, very long, and after that nasty 7am wakeup, I managed to KO myself by using an agent which dropped my blood pressure massively, and use the hypotension to render myself unconscious within a few minutes, after the 20mg nitrazepam and a dose of chlormethiazole failed to permit sleep. That kept me down and out until 10am, at which point, I had to wait maybe 10-15 minutes until postie arrived with the overnighted care package (yes, I'll have to pay him, but he doesn't overcharge, and it is a private rx, not sure he makes much off the 'done, he just prefers H, so if I buy his methadone, he can use the money to buy H, whilst I like methadone more than I do H, works out for both of us. But he did do me a lay, I.e on credit, no extra charge for it, just wanted to make sure I'd not suffer until 8-9am monday morning. A friend first, source of various things psychoactive second)
So it's been a bit different than usual, thanks to my miscalculating how many capsules of pain meds I had left, fucking up bigtime, and having to rely on the methadone. But I feel fine, I think I'll take a small top-up dose, just so I'm 'perky and raring to go' rather than 'fine', I've enough, it only has to last me the rest of today and tomorrow. Which it will, its enough to keep me nice and comfy for that time.
And as a bonus, methadone has properties most painkillers of the opioid type do not, which make it specifically suited for neuropathic pain, which most opioids don't do shit for, not well at all. So the nerve damage in my leg isn't giving me grief either.