I grew up with pain on account of a disability effecting all joints, bones and muscles. As an infant through to 9-10 I was given injections of morphine to ease pain. I saw the dragon very early in life. Once I was cut off, I just tolerated pain. After moving for an hour in the morning it dissipated somewhat. As a teen-young man I discovered that cannabis eased my pain throughout the day. My saving grace was black Afghani hash laced with opium. I ate a gram every morning. Working with global grade importers made this easy. When the supply dried up I was out of luck.
I found quite a bit of pain relief in peyote, synthetic mescaline and psylocybe mushrooms as well as increase in awareness. The trend to breeding the shit out of cannabis destroyed most of the effects for me, making pain worse so I've abstained since about 1989, despite making my income from growing relatively large quantities. In the mid-90s I convinced a doctor to prescribe morphine, after many failures with other analgesics. I've never looked back since. A pot of espresso and 120 mg of morphine every morning makes it possible to walk for about 4 to 6 hours and function through to bedtime; same dose for 26 years.
Dad was on morphine. It seemed to me that the pain he had cancelled the high.