What difficulties did Helen experience while taking her final examinations for Radcliff College?

From the text:

On the seventeenth of November I was not very well, and did not go to school. Although Miss Sullivan knew that my indisposition was not serious, yet Mr. Gilman, on hearing of it, declared that I was breaking down and made changes in my studies which would have rendered it impossible for me to take my final examinations with my class. In the end the difference of opinion between Mr. Gilman and Miss Sullivan resulted in my mother's withdrawing my sister Mildred and me from the Cambridge school.