肩こり

1. Origins, structure, and basic meaning

• Structure: 肩こり is read かたこり and is a noun naming shoulder stiffness or tension.
• Basic usage: In 長時間パソコンに向かっていたら肩こりがひどくなった。, a long time at the computer makes the shoulder stiffness worse.

2. Common pitfalls and similar expressions

• The symptom as a noun
  • In 肩こりがひどくなった, shoulder stiffness itself is the subject. Even when translated with a verb describing stiff shoulders, 肩こり remains a noun naming the symptom.