Hi,I am a sibling in the middle of two cfers. My older sis and younger brother have it, but not me. I used to feel the same way. The only way I can explain it is, at a young age, I felt that my parents were giving them all of their attention. Unfortunately, they did not do any special things with me. I just had to "deal with it". Now at the age of 29(almost 30), I understand why they spent so much time with them. It is hard for a middle child with older and younger siblings having this disease. Unfortunately your middle one is still young. She will understand. Just keep in mind that you need to spend special time with her the way you do the other two. Make sure you try to explain to her that her siblings need this to help them feel better. Even though she is a child, I think deep down she will understand. While the other two are getting treatments, maybe try and give her something special to do to help. Just a thought.Kay29yrs w/o cf30(almost 31) yr sis w/cf & cfrd23(almost 24) yr brother w/cf