Re: 2y2m, talking issues - is this normal?
From what you've been describing, yes I'd get him evaluated. My oldest didn't talk really at all until JUST before her 2nd birthday, so that alone doesn't bother me, it's the tantrums and the fact that he's trying to communicate and it's not working that would get me to get someone else's help. DD1 never did that, she just wasn't interested in talking until all of a sudden she was. She started paying attention and trying to talk about this time of year and then by Christmas she had dozens of words and was trying them out all the time.