I am 31. According to my parents I got a few really scary meltdowns when I was a child (I don't really remember). Then nothing between the ages of about 10 and 25. Then a few years ago I started having meltdowns again. (Now it's much rarer than 5 years ago but I know it can still happen.)
I link that to my ability to cope with the world. Between 10 and 25, I had a very simple social life : my family, a few friends with whom I did games and intellectual activities, and that's all. In high school I did not care to communicate with anyone except 3-4 friends; in college it was better and people globally liked me although I could hardly really connect with anyone. I had few social skills but I didn't need many, so it was not a much problem. In a nutshell, I was a quite lonely and sometimes anxious but otherwise happy introvert.
A few years ago I got frustrated with being socially awkward though; I started to experiment and my social life suddenly became much more complicated and demanding, much more than I could handle. That was what triggered meltdowns (along with depression and a lot of unpleasant things). Since then I got better at handling my social life (and I also got diagnosed ith AS) and the situation improved, although it's still quite excruciatingly demanding.
But the point is : I link meltdowns to a discrepancy between social demands and social skills. During a long time I had few social skills but very few social demands too, so it was OK, no meltdowns. Then social demands increased and I got meltdowns. Now my social skills have increased (and some social demands have decreased, because some people have registered and understood I am autistic) and things get progressively back under control.
(BTW, first post here in more than a year I think, hi again to anyone I used to know around here and sorry if I left unfinished business or discussions last time I was around.)
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ouroboros
A bit obsessed with vocabulary, semantics and using the right words. Sorry if it is a concern. It's the way I think, I am not hair-splitting or attacking you.