Understanding 'Tumult'

Despite the tumult surrounding her decision to change careers, Lydia felt an undeniable sense of purpose guiding her. While family and friends were supportive, they also expressed their concerns about the risks involved. As she weighed the various factors, the opportunities available to her seemed both exhilarating and daunting, leading her to ponder not only her immediate future but also her long-term aspirations.

In this context, what does the word tumult most closely mean?