If your neck is always stiff or you can't turn your head without feeling pain, it's a sure sign that your cervical spine is out of alignment.
The same is true with your hips. In addition to a subluxation, you could have a problem with tight muscles or damaged connective tissue like your ligaments or tendons.
If you've felt this way for a while, you might be used to it.
But things would be so much better if you had a full range of motion in your neck without any pain or stiffness.
Once your neck is realigned, you will feel a noticeable difference.