Everything is connected. It’s entirely possible something as far down as your big toe can impact your neck. I’ve read somewhere that compensation to an injury can become permanent after two weeks. For example, you sprain your ankle. You can’t dorsiflex because of the injury so you walk like a duck. Twenty years later you still walk like a duck although it healed years ago because you didn’t do the proper rehab. Now you might have some hip dysfunction, be leaning to one side, pelvis tilted, crooked spine, etc… I’m over-simplifying this because I don’t fully understand it all myself. I just know I feel like I’m playing whack-a-mole when trying to fix all my problems. It seems like one dysfunction re-enforces another.