I also forgot to mention that my first son was very OCD, he would absolutely lose it (and this is before he was even 2.5) if Daddy’s routine changed after he got home from work. We finally figured out one day that it just upset his world if Daddy showered before using the restroom. He was so claustrophobic, and so afraid of heights (would just scream and grasp the sides of a changing station, etc). I was really concerned and his pediatrician, who was very laid back which I needed:), told me that a lot of children show OCD tendencies while they are young, and then grow out of it. He is 8 now, and did grow out of it, he’s still not a big fan of things that move (carousels, horses, etc) but he is a very “normal” boy. Now my 4 yr old that I posted about above I’m guessing will not grow out of it. So I don’t think you need to know what is wrong at this point, see how things go.
You’ve gotten much good advice, and I thought I’d throw in a few book titles that gave me insight with some of my kiddos – our library carries both titles:
Quirky Kids: Understanding and Helping Your Child Who Doesn’t Fit In- When to Worry and When Not to Worry (lots of great info here that may help you sort things out)
http://Www.drkendalstewart.com is an awesome resouce, too. We have been on a protocol that has changed our lives. The podcasts are amazing. I remember realizing when I knew my daughter’s behavior was not really the issue. I think as a mom you will come to understand if it is just age (childishness), behavioral problems, or something deeper. Dr. Stewart in the head of the NeuroSensory Centers of America and has great information.