What are the opposite words for breathing spell?

Breathing spell is a term used to describe a pause or break in an activity, usually to allow time for rest, reflection or relaxation. The term has a positive connotation, implying that the break is necessary and refreshing. However, there are a few antonyms to the term, which suggest a different perspective. One such antonym is "busy work," which implies that the activity is not meaningful or productive, but is merely a distraction from more important tasks. Another antonym is "nonstop," which suggests that the activity is continuous, without any break or rest period. Finally, "stressful period" is an antonym that highlights a period of intense activity or pressure, without any opportunity for relaxation.