[marcinreal]

I'm curious, have you lived in the same place this whole time? If the pain came back when you returned home, maybe there is some environmental cause for it, possibly something poorly-understood. I hesitate to even mention any examples because this can be controversial (and murky) territory, but I'm thinking of things like EMF exposure. Maybe you are really sensitive to something like that. Not sure, but could be worth experimenting with different environments and collecting data.

[ArlenBales]

I may have emphasized the pain going away on the PCT too much. It was still there, but subdued. Backpacking a thru-hike like the PCT is quite a physical and mental ordeal, hiking for 12+ hours a day after day for months, camping every night, acclimating to a range temperatures and high elevations, interacting with other hikers from all over the world. I think it was a new wave of sensations that overloaded my nervous system and distracted me from my usual chronic pains, which are more apparent when I'm sitting at a desk all day.

[marcinreal]

That's interesting. If you think it could be a nervous system issue, have you tried herbs that calm the nervous system or looked into ayurveda or relaxation techniques? Sorry for the random unsolicited advice.