I highly recommend Karma Genetics's Biker Kush. I suffer from extreme sciatica and lower back pain (when not medicated) and this is my go-to strain when the pain is off the charts. Its like my secret weapon. I can smoke joints all day, but a bowl of this stuff turns reality on its side.
I saw you say the psychoactivity is undesirable to you, so do go with the less psychoactive strains for the majority of your use, but I can't recommend this strain enough as your secret weapon. For those nights where nothing helps and you just wish you could stop existing, this is the shit you need. Its like a sledge hammer. It'll shatter through any pain. It provides relief in minutes, triggers insane euphoria, and take a little too much and its lights out.
Last year, my father was all coked up and thought it would be a good idea to go through my personal stash, and he had the misfortune of grabbing my BK. In his own words, "after two hits in my one hitter, I barely had the energy to make it to my bed." Needless to say, it'll help you sleep through the night. I don't like edibles, but I expect even a small dose in edible form would be devastating. Trust me, I know very well how indicas can keep you awake for some reason, but not this one.
Its super potent, a heavy yielder to boot, and it has that horrendous burnt rubber stank with some phenos having varying degrees of lemon pinesol. I can't speak highly enough of this medicine. I give a tiny jar to all my pain patients, and it lasts them months. All my friends and patients joke whenever we smoke, "hold on, hold on! This isn't Biker Kush right? I got shit to do tonight!"