I would probably look into your standing posture. My whole life I didn't know I was standing all wrong until I got a standing desk and stood incorrectly for a w

I would probably look into your standing posture. My whole life I didn't know I was standing all wrong until I got a standing desk and stood incorrectly for a week. My lower back and knees (from locking them) were screaming for weeks afterwards. Now I have to learn how to stand correctly to actually use it (but of course we moved offices and I no longer have a standing desk).