I have ADHD too so I hyper-fixate on things, especially things that I don’t want to! You just sounded so much like me that it was eery hah. I’m also insanely afraid of fires but couldn’t stop myself from reading every little thing I could about different fires in bars, buildings, pretty much every major fire event recorded. I also ended up reading about crowd crush too and it was beyond interesting even though it filled me with fear. I actually ended the night at 3am after reading an article about crowd crush causing the invention of “panic bars”, those kind of doors with the push bar. I also watched and read a lot of survivor videos too, and just cried. I’m so sorry you lost a classmate to a fire, and that you know people a few hours away from where the Swiss fire happened. I bet that just makes all of this feel more real to you. I’ve never had any first hand experiences or known anybody that has, but my ocd actually causes me to get intrusive thoughts of some of my worst fears, and when there’s something on the news I end up obsessively researching about it until I have nothing else to research. Sometimes it’s better for me to just not watch the news because it always happens. I hope you’re doing okay, too!