I FEEL your pain. During the depression of 75, I had to spend several months pouring and finishing concrete (I figured if we could get the buildings put UP, SOMEONE would have to wire 'em).
Even as a pup, it was some kinda tough to use a different set of muscles. I've done all kindsa things during tough times, but hope concrete and drywall never come back, cuz I figger now they'd likely break the old geez.
livetoride: 25 years as an electrician working with your brain?????? Who installed your ductbanks, transformers, overhead conductors, etc ???? I recall some pretty danged tough work related completely to my end of this trade. Including having to use some nasty jackhammers to get through, over and around things.
Anyway, as an aficianado of Bayer myself (there ougtha be a club don't ya think?) I also make judicious use of Goody's headache powders, aspirin in powder form, taste awful but work nearly instantly.
Starting a ductbank Monday, It's gonna hurt me just to watch.