Do you think you could have a little case of Seasonal depression?
Absolutly and so does my son. I just got a SAD light for the family, but you generally need to start a year ahead of time to feel the full benefits. Clearly because in our job, even with outdoor time, their is more isolation I think it makes it easier to be effected by this. My son's mood also changes dramatically at this time of year. I'm hoping the light will help.

With your son, is there any way you can make a new house rule?
I love your idea for this. I have obviously told him numerous times about staying in his room etc etc, but this generally happens during the night or at bedtime when I am little shorter with him and he is probably at his worst state as this is when his brain activity clearly goes even more out of wack. I will actually chat with him today. Sometimes aswell its the way information is delivered to him. Thanks for the suggestions kidlove.