People come to me with a stiff neck and a stomach that's been off like they're two separate complaints. Usually, they're not.
Chinese medicine has a name for the organ system most responsible for keeping things moving smoothly under stress: the Liver. Not the organ in the biomedical sense, but a functional system whose job is to keep Qi, the body's working energy, flowing without obstruction.
Stress constrains that flow. When Liver Qi gets stuck instead of moving, it shows up in two places that don't look related at first.
The first is physical, along the pathway the Liver and Gallbladder channels travel, which runs across the shoulders and up the sides of the neck. That's the tightness and bracing that builds through a stressful week.
The second is digestive. A constrained Liver tends to encroach on the Spleen, the organ system responsible for processing food. That's the bloating, the tight jaw, the stomach that's "off" for no reason you can point to.
Same disruption, two locations. Which is why the useful question isn't "why does my neck hurt" or "why is my stomach off" on their own. It's what else changed the same week the shoulders locked up. The answer is rarely nothing.
Acupuncture along those channels, paired with points that support digestion, treats both from the same root instead of chasing two symptoms separately.
If stomach or bowel symptoms include blood, black stools, or pain that's severe and constant rather than crampy and stress-linked. That's a different picture than stress, and it's worth a visit to your primary care or gastroenterologist.