Sorry I got that wrong...so the pediatric GI is the bad one.
Bella, that's really sad that your daughter thinks that she will die soon. I think you have to reassure her. When she feels really sick, she may feel like she is going to die, but I think when she gets the proper meds and care she will be okay. Just let her know that you and the doctors are doing everything possible to make sure she starts feeling better, but it may take a little time.
I'm sure that Dany can give you some suggestions in dealing with your daughter's fears, also.
Hugs,
Connie