"Between 1991 and 1997 I had really serious asthma"

In this quote, Cathy Freeman, an Australian Olympic athlete, is discussing her battle with asthma during a particular time period in her life. She specifies that in between 1991 and 1997, she had "really major" asthma. This suggests that her asthma was not just a minor inconvenience, but a considerable and possibly devastating health issue. Using the word "serious" also suggests that her asthma may have had a substantial impact on her daily life and perhaps even prevented her athletic career during this time. Overall, this quote highlights the difficulties and challenges that Freeman had to get rid of in order to achieve her success as an athlete.