Thank you very much for your response. I guess the apple doesn't fall very far from the tree -- I have experienced axienty from time to time, although only later in life (starting in my 20's).
I'm hoping we are catching this early. He doesn't have other typical OCD tendancies that I know about -- hand washing, fear of germs, counting. He also has lots of friends. However, he always been fearful of things (burglers, fires, etc) and feels most at ease when his parents are around (fears we will leave him, hates when we travel). We always chalked this up to being "sensitive". Are these behaviors also related to OCD/has this been occuring for a longer time than we thought?
What is the prognosis over his lifetime, with an excellent cognitive behavioralist? Will he always be pre-disposed?