My dd is almost 2 and I think she's showing autistic traits. I've worked with autistic children briefly, but they were several years older, so I'm not sure if I'm misinterpreting things that may be normal toddler behaviour. Here's a few examples that concern me:
She has two words only. One is mama that she repeats often but sometimes randomly rather than in relation to me, the other is yeah which she says hundreds of times per day. She doesn't repeat speech or try to.
She eats very few foods. She'll rarely try anything new but if she does and likes it she'll want that constantly for weeks, then it'll change to a different food.
She cannot stand physical contact or lack of personal space from anyone but me. Today we were at mils and dd was sitting on the worksurface a foot away from me having a snack while I washed up. Dd saw mil coming towards her and was whimpering and flapping because she thought mil would pick her up, as mil got closer and I was trying to dry my hands it looked as though dd would rather fall off the work surface rather than mil pick her up 
Even if someone touches her arm she screams and has never really been held by anyone but dp or I as she gets absolutely hysterical and thrashes around so much they could drop her.
She develops fears of random things such as leaves, sand, grass etc and can't abide being near them or even seeing them in a book then after a few weeks the fear will change.
I could go on but I'd be really interested to hear others experiences and opinions if you'd be kind enough to share/help.