8. Stiff neck

Muscular stiffness or tension in the neck area can often be attributed to excessive stress or lack of movement and exercise. 

However, it can also be a symptom of more serious health issues. Infections, meningitis, cervical spine problems, arthritis, and other serious health conditions may present stiffness in the neck as one of the symptoms. 

Pay attention to what your body is telling you and be vigilant for other possible accompanying symptoms, such as fever, headache, neurological symptoms, or difficulty moving the neck; in such cases, it should be evaluated by a healthcare professional to rule out serious underlying conditions.