kõõluseks
Kõõluseks is a term used in Estonian to describe a feeling of unease or discomfort, often associated with a vague sense of worry or apprehension. It doesn't necessarily point to a specific problem but rather to a general feeling that something is not quite right. This sensation can manifest physically, such as a knot in the stomach, or emotionally, as a feeling of being unsettled.
The origin of the word is thought to be related to the concept of a "loose joint"
Individuals experiencing kõõluseks might feel restless, find it hard to concentrate, or be more sensitive to