At least your parents don't know you posted this. I think there is usually a reason behind a feeling. Maybe if you get to the bottom of why you wrote the post and how you got PTSD you might find the source of the anxiety. The parenting issue is on my mind because I believe my older sister turned into a bully because of bad parenting, but my sister said I was born bad so nothing she did to me was her fault.

Why do you feel there was bad parenting? It's not always neglect or abuse. Sometimes it's lack of support, too much pressure, saying mean things, or not stopping sibling bullying as in my case.

I hope you feel better soon.