E.B.
My son is the same age (will be 4 in March) and he is doing the exact same thing. I think he needs to get outside and play! As the weather cools down, you can bet that we will be outside and running around! When we were kids that age we COULD just go out and play and now that isn't possible with all the dangers out there. And in AZ it is sooooo hot. I just really believe that kids these days are not getting enough play time and that is what is causing so many behavioral issues. And at this age they are really learning their independance and discovering the joys of life and they are learing what to do with all that knowledge and new independance. But that is just my opinion after raising 5 of them!