“Harry Potter” maven J.K. Rowling announced Monday that she’s recovered from a case of the novel coronavirus COVID-19, though she admits she never received a test for the illness.

Rowling, 54, tweeted the news along with a video offering tips on how to relieve the respiratory symptoms of the illness. “For the last 2 weeks I’ve had all symptoms of C19 (tho haven’t been tested) and did this on doc husband’s advice. I’m fully recovered & technique helped a lot.”