Autistic Hedgehog

Not necessarily. We talk about meltdowns more frequently here, but shutdowns happen too, and are basically what you’ve described. A lot of us have some at least occasionally, and there are those of us more prone to shutdowns than meltdowns.

It’s really down to how each individual autistic copes with sensory input, and definitely doesn’t rule out an autism diagnosis. 

There could be a lot of reasons behind this that you should take into consideration way before misdiagnosis. 

First of all, it could be that you’re prone to shutting down rather than melting down (which might explain the lack of crying). Both tend to occur from overstimulation of some kind. I was very prone to shut downs whenever a family member or friend died (which happened a lot for me). If I cried at all, it was very little, and I’m sure my reactions came off very cold to other people. There was so much grief going on around me that I couldn’t cope with it, so it was a bit like I disconnected a part of myself. Maybe you do that instead.

Maybe it’s as simple as you’ve managed to, one way or another, keep yourself free of situations and spaces that cause you to meltdown. That’s pretty hard to do for anyone, though, as meltdowns can be caused by anything from a place that’s too crowded to a day of snowballing disasters (even if they’re small disasters).

Or maybe you’ve learned how to deal with things enough that you don’t have meltdowns. I don’t have them very often either. There’s complications from autism that I’ve learned to deal with quite well. I used to be the kind of person who couldn’t handle any change in her routine; literally, if I burnt my breakfast, I wouldn’t go to school. I don’t know exactly what happened since then–I think, on some subconscious level, I realized how little I got out of giving in to that–but these days I can roll with most changes, and recover from the ones that do get to me. 

Maybe you’ve learned to process what’s happening to you and avoid meltdowns without even realizing it. It’ll take some self-examination to find your answer, but don’t assume it’s misdiagnosis until you’ve looked at all the other possible answers. We’re all different, we all learn and process differently, we grow to be able to cope more with some things and sometimes less with others.

(Small caveat: I don’t go to school anymore, and I don’t have to work, so not having to deal with those upsetting environments has likely done a lot to help with my lack of meltdowns and the like. If I had to get a day job, I don’t know if I’d be able to function as often and as well as I do. Just the thought makes me sick to my stomach. Just pointing out that learning to cope is great and wonderful and all, but what therapists and the like–who will try to teach you these things–forget is that environment counts too.)