Angst
Angst is an emotion. It is an emotion of fear or anxiety (anguish is its Latinate equivalent. Anxious and anxiety have similar beginnings). The dictionary definition for angst is a feeling of anxiety, apprehension, or insecurity.[1] It is used in English to describe a strong feeling of apprehension, anxiety, or inner turmoil.
Angst Media
The Scream (1893) by Edvard Munch represents his experience of "an infinite scream passing through nature."
References
Other websites
The dictionary definition of angst at Wiktionary