"People" has an article about tonight's episode in which Jazz and her parents learn that her BMI is too high and that she needs to lose 30 pounds before she can undergo gender reassignment surgery (or gender confirmation surgery, as they refer to it on the program).
If you watch the episode, you learn that Jazz's eating habits have gotten out of control recently. She's privately binge-eating large quantities of really unhealthy food. I can completely relate to binge-eating. But the quantities of food discussed was huge even by my own standards.
It sounds like much of this season will center on her developing better exercise habits, as well as trying to curb her eating. For example, she will be seeing a hypnotherapist in next week's episode.
In addition to reducing her BMI, Jazz also learned about several new surgical hoops that she needs to jump through in her effort to get approved for gender reassignment surgery. I won't go into it all, but she's gonna need to travel all over the country to meet with this specialist or that specialist. I cannot imagine the amount of money that it costs her family to surgically transition -- not just the medical expense of hormone treatments, ongoing consultations, and surgery, but also transportation and hotel expenses!