I can relate. Herniated L3-L4, four more bulging. All the standing up, hands out in front of you, turning to move things from here to there, bending over, usually 5 or 6 hours from start to finish... it's a killer. If you have to move a full pot, even just slide it a little, AARGH!, then moving the full carboy when you're done, then all that clean-up... HOLY CARP! Yeah, just brewed yesterday afternoon, didn't sleep much last night (of course I had to hobble to the garage at 2am to check for activity), still hurting pretty good right now. For me, suck it up, then Naproxen and Norco. Haven't come up with any realistic solutions. Unfortunately it takes some of the fun out of a brew day, and controls which days I can or can't brew. I can relate, but not much help, sorry.