Is NOBODY wrong in the post ? POST : Okay, so, for some background, I (17f) am the oldest of two children. My sister (14f) is a good sister. We argue sometimes, but get along pretty well for the most part.

I deal with some pretty serious mental health issues, including (but not limited to) PTSD, Severe GAD, Depression, and ADHD. These have caused serious turmoil in my house for as long as I can remember. Like, argue until 3 am with my parents, visits to the ER, and leaving the house in the middle of the night. My mental health issues have also caused monetary issues with my family (my parents are very vocal about this), as I see three different mental health professionals for different reasons. 

My sister does not struggle with mental health, but she does struggle with her physical health. Three weeks before her 14th birthday, she had to get pretty serious jaw surgery (the recovery was rough, and six months later, her swelling is just now fading). She also has severe scoliosis, which requires her to go to a special center for physical therapy and wear a (very expensive, like $2,000 expensive) back brace. 

I have noticed that there has never been any discussion around the expenses of my sister's health issues, and it stirs up some of my serious anxiety. I feel like I am a burden on my family, but I know that in reality, her heath costs are double mine, yet for some reason, I'm the person who has to hear about the costs they cause the family. 

I don't resent my sister for getting treated differently. I know that mental health issues can be seriously hard on people surrounding me, but the parental reasoning is that "your sister can't change her health, but you can work to get better", it's really hard to see eye to eye. I feel like my parents are acting unreasonable, and it's obvious that my sister knows and is starting to take advantage of their obliviousness and sympathy.

I haven't really said anything to my family, but AITH for feeling this way, and WIBTA if I chose to say anything?

&amp;#x200B;

TLDR: my younger sister suffers from serious physical health problems, and I suffer from serious mental health problems, but I'm made to feel guilty for how expensive my problems are, when in reality, they are about half of my younger sister's costs. 