The Trouble with Tests

(1) Lisa was a good student. (2) She studied hard, diligently did her homework, and turned in assignments on time. (3) Whenever she had to take a test, however, Lisa had a problem. (4) Her hands began to sweat and her stomach began to churn. (5) She felt dizzy breathless and sick. (6) As a result, Lisa couldn’t focus and always did poorly on tests. (7) Her grades suffered, and so did her confidence level.

What change, if any, should be made to sentence 5?