A shutdown can actually be worse and more painful for an autistic person. At least with a meltdown, you have a bit of a catharsis at the end and sometimes can feel better after.
It can be scary and embarrassing.
I’m not doing this for attention. Attention is literally the last thing I want or am looking for.
It would get worse and I wouldn’t be able to calm my brain down so I could get over it.
That’s a really big difference between a meltdown and someone throwing a tantrum.