More seriously, though, I have had similar feelings many times. However, I spent a decade from high school through post-college working manual and food service jobs, so I have no illusions that they provide some kind of fulfillment not found in computer jobs.
My solution was to spend as much non-work time as possible doing outdoors/manual things. And if there’s something related to your job which can be done while riding a bike, or walking, or repairing a motorcycle, or whatever your preferred physical activity, rather than sitting at a desk, then do it that way. Listen to an audio version of a report instead of reading it, do meetings while walking, etc.
Finally I’d also recommend a book related to this topic: Shop Class as Soulcraft, which is about a philosopher that became a motorcycle mechanic, and I believe later became a philosopher again.