The thing with autism is every normal problem gets turned up to 11. So shit like getting frustrated when you can't get something to go your way turns into a meltdown.

That means that, as our broke scientific institutions redefine autism to include everyone, all the things the cause meltdowns and other real problems for autists get redefined as a symptom of autism. When in reality those things bother everyone to one degree or another but we have ways to deal with it.

It goes like this :autistic kid loses his shit over a loud noise. Psychologists decide that this means that a symptom of autism is not liking loud noises. Everyone who doesn't like loud noise is labeled as being "on the spectrum".

So the only real answer is: you had a tamper tantrum.

Any other answer simply plays on the pseudo scientific claims that everything is a sign of autism.