Your question really highlights how challenging it can be to parent a child with a chronic health condition who is struggling both physically and emotionally.  Oftentimes, parents worry about saying the wrong thing or not doing it well enough, but what I find is that intent matters and kids/teens remember that.  Being able to have conversations about the challenges, to really hear your child and to be able to sit with them during those times when they have challenging emotions or circumstances is so important and can oftentimes lead to productive conversations about what might be helpful.