What is this called?

Hi, I'm new here but getting straight to my question. What is it called when receiving calls, texts and notifications in general just stress you out? I saw a video on YouTube about it and it had a particular name for the life of me I cannot seem to find it anywhere. I've tried to dumb down my phone and laptop as much as possible but obviously, I still get calls, messages and notifications that come through. When they start stressing me out especially are when I just want to be left alone and when engaging in socialising like even stringing sentences together is draining beyond belief. Even typing this out is incredibly difficult and it's making me want to throw my laptop out the window (sorry for the aggression) it's almost like my brain is saying "I can't function any more" and it actually feels like my body starts to physically hurt. Is there a name for this, is it even an autistic thing?