(Concern) Neck pain worry

Many people working in front of computers may suffer from neck pain and stiffness, and I also sometimes experience severe neck pain that makes it difficult to fall asleep unless someone massages it. Visually, it doesn't look like a turtle neck, and the hospital also said there are no turtle neck, straight neck, or cervical disc issues. There are no lumbar disc problems either, but they mentioned that one side of my pelvis is lower than the other.

I asked if it could directly affect my neck pain, and I was told it probably wouldn't have a significant impact. Can simple shoulder stiffness or accumulated fatigue cause neck pain severe enough to make it hard to fall asleep? I have visited several orthopedic clinics, but they said there is no particular abnormality in my neck. However, sometimes I experience headaches due to neck pain, and my eyes also feel tired. In the past, I worked as an instructor for a long time, which involved standing for extended periods, and I often received manual therapy for muscle pain, but even then, my neck pain wasn't very severe. Rather, since switching to a desk job, I feel more exhausted physically because of my neck. Are there other ways to examine this besides an X-ray?