Here's the answer:
“ストレスがたまっています”
(sutoreru ga tama-tte i-masu)
Watch a real native speaker say it:
Here's how it sounds in a textbook:
You could also say:
- ストレスがたまってます
Fun fact: the hundreds of thousands of people learning Japanese with Memrise get this phrase correct 93.2% of the time!
