Muscle ache

Yup, all the cutting from yesterday gave me back ache today. Am I so fragile that I can't even cut some stuff? (OK it was most of the day and not just "some stuff".) It was also lots of packaging. A little bit of painting. That was all. Even if I get to work on components for actual pieces, it's boring, and taxing on my eyes, neck, shoulders and back. She's still holding back most process. Seems like there's no more to learn at this job. No room to grow. This is very bad for personal fulfillment. I need a different job badly...