Pretty sure I've commented on this thread before but I'll do it again.
I've had major depression since I was a kid. Made worse after a bout of Mono in my teens, that left me with fibro-like pain & chronic fatigue.
With all of that combined, I remember days as a teenager where I'd be hanging out with my friends & they'd all be laughing & socializing & I'd want to do the same, but I was so damn tired & depressed that I didn't even have the energy to move my mouth & speak. Obviously living this way has affected every single area of my life.
On top of no energy, I feel constantly sore & achy. Similar to how you feel after a good hard work out, when your muscles feel sore the next day. I feel that way every day though, even without working out.
I got hooked on tramadol at age 19 & then eventually landed a heroin dealer later on in my 20's.
But I went through withdrawals every month from the age of 19-30ish.
Opioids can be incredible antidepressants. They worked better than SSRIs, SNRIs, the whole lot. But your depression will be 100x worse during withdrawal. So this route is only viable if you know you'll have access to opioids forever.
I'm now on buprenorphine maintenance & probably will be for the rest of my life. Buprenorphine does help my depression but not as good as full agonists. I also find buprenorphine is much more heavy & sedating than full agonists (possibly because it has a metabolite that is also a sedative). So I feel mentally blunted & flat every day from it. Which sucks some times but other times it's better than being an emotional rollercoaster. Although feeling flat & blunted can also make me kind of depressed. So ideally I'd rather be on a full agonist for maintenance. But in a sense I'm kinda chained to the system now & will always need some kind of opioid daily to function.
I just lost my train of thought & I'm too tired & sore to actually finish writing, so..
If we didn't have an ignorant drug war ruining people's lives & people could access & rotate opioids legally, it might be a different story.
Also, there's no proof that depression is caused by low serotonin. There's also no proof that increasing one's serotonin "cures" or "treats depression" any better than opioids would. In fact, long term SSRI/SNRI use can actually lead to lower concentrations of serotonin in the brain. So the medical establishment are a bunch of liars. The serotonin theory of depression was only invented to sell drugs, at the expense of your well-being.
After decades of study, there remains no clear evidence that serotonin levels or serotonin activity are responsible for depression, according to a major review of prior research.
www.sciencedaily.com