I don't know, Maid . no eye contact, out of control tantrums, turning away from social interaction, unresponsive to parental input...maybe, maybe not. describes both autistic child and bogstandard toddler-in-a-mood!
If there are any concerns it is always a good idea to request someone takes a look. Because with asd, early intervention is crucial, any warning signs should mean a trip straight to the gp for a referral. Better to be told there is nothing to worry about than to leave it for a year or more because "children develop differently, it's a phase, etc etc etc" It may well be, probably is, but if it's not a phase then that time wasted could have made a world of difference.
There are as many ways to have asd as there are people with asd, iyswim, so it's really hard, you can't, for example, say X child lines up their toys so they have autism (if only twas that simple! ), but a good guide is the triad of impairments. That is, difficulty in 3 key areas - communication, social interaction and imagination.
If you do want to know more, you can start here
more here
endless resources really!