Relatable tbh.
For autistic people good noise cancelling headphones or ear defenders are a lifesaver. The best noise cancellation is if you put earbuds under strong ear defenders like these:
The downside is that you look like kind of a dork if you wear these all of the time. But with autism who cares.
Getting heart palpitations from shouting sounds is an abused dog trait. Do you also happen to only listen to headphones with one ear in?