It can be large, it can be small, but somehow it allways make you feel less at ease. Some people pretend it is just a feeling, but it is more, far more than a feeling.
Take for instance
The unbearable lightness of being, which happens also to be a movie I never was able to see because my parents at that time considered me to be too young.
The fact that being can be such miscomfort because it is unbearable because of it's lightness is a wonderfull example of a miscomfort.