I was diagnosed with PTSD a year or two ago. I've noticed this for quite a while know. Unless there is a clear reason why, I hate people laughing. I'm not sure If it stems from my PTSD, but I get extremely angry, nervous, and sometimes depressed if people are laughing with seemingly no reason. I could just be wierd as per usual.
I hate that too, ugh. I have PTSD. I dunno if it relates to one of your triggers but I find it's hard for me to not feel wary around people I don't know. If I can't identify someone's motives or how they're feeling, it puts me on edge. So that could be it. You're nervous because you don't know why they're laughing.
Thought about it a bit. I was bullied to the extreme back then. Laughing = mocking That, or It could be what you said. My therapist said paranoia is a big problem with PTSD.
it can be ptsd if it a) relates to a trigger or b) you are hypersensitive to sounds because of hyper-vigilance/anxiety
