Highschool Anxiety

So, my oldest son turned fourteen a few months ago which means come the fall it will be time for him to begin highschool. There is some serious anxiety happening about this. Not by him, BY ME. How on earth did this happen? When did my beautiful, chubby, easy going, blue eyed baby boy turn into a muscular, handsome, rugged, often emotional young man? Somedays I just don't know how we got here or at least not this quickly. There are days that I myself still feel like a child so I don't know how on earth it is that I have a teenage "man" calling me mom in a very deep voice. I still look for the stranger wandering around our house when I hear "that man" talking. It seems like it crept up on me out of nowhere. Yesterday, he was playing with cars and legos and loved to watch cartoons. Today he totes around a BB gun, wears army fatigues, shaves and talks about learning to drive. For those that fear I am failing at this whole letting go thing don't worry I don't bemoan these things outloud to him. Well, except for the times I force him to cuddle up on the couch next to me and I hug him like a wild woman and call him my baby until he can't take it anymore and flees the scene.