Hey dude, are you actually in search of pain relief?
Like I got pretty serious chronic pain from nervous system damage. Weed practically does nothing to lower that particular pain for me, and I've tried a lot of weed. I still smoke weed, and eat a lot of it, especially later in the day (coz sleep)...but for actual pain relief that works well, I use kratom. If you've not tried it, it's been a lifesaver for me, like I can't do shit without it and obviously all the pharma shit is worthless and worsens the problems, with shit efficacy, very quick tolerance buildup, toxicity symptoms. And I did try a lot of pharma shit. All of it useless, negative, damaging garbage.
So yeah, I highly recommend you try kratom, gold varieties, especially...if you haven't. For some people red varieties work better, but I find them more sedating than pain relieving. So I use green varieties early in the day (kind of an upper, no sleepiness shit associated with it), gold after like 2pm. It might not work for the sort of pain you have though, it's slightly euphoric, mood boosting, etc. Not something I'd use for "partying", but personally very useful for pain management. And tolerance buildup, at least for me, is minor (but I do try to use as little as I can get away with, coz it's fucking expensive here, though typically cheap in say, america, and I'm flat broke). Like I've used the same sort of amount, consistently, for about 2 years (actually lowered it a bit recently)...that to me means tolerance buildup isn't a big concern.
Shit, it's almost impossible to find me without having weed, kratom and some low levels of alcohol in my system. Like I'm never what people would call "sober", but hey, they can't tell.
Cheers.