My son is about 17 months and he seems pretty normal but there are some things I worry about like it’s hard to get him to make eye contact and he doesn’t always listen when I call him. He also shakes his arms a lot and stands on his head a lot which I’m not sure if that’s a sign of autism or not but. he’s very good at sharing though which I read is good he shares with me and the dog and sometimes other kids. Does it sound like he should get checked?