Conversation so far:
What kind of substance abuse did Cat Power have?
Cat Power spoke openly about suffering from severe bouts of stage fright and admitted that her stage fright stemmed from issues regarding depression, alcoholism, and substance abuse.
Did Cat Power seek any medical attention?
As part of Cat Power's recovery, she was admitted to the psychiatric ward at Mount Sinai Medical Center & Miami Heart Institute but left after a week.
What was Cat Power being interviewed for?
Cat Powerl gave a first person account of her breakdown in an interview for the November 2006 issue of Spin.
What happened after Cat Power was hospitalized?
In September 2012, Cat Power stated she had been hospitalized due to the condition over eight times, which led her to cancel her European tour.

Question: WHAT IS HEREDITARY ANGIOEDEMA
Self-contained rewrite: What is hereditary angioderma and how did it affect Cat Power?