Kendall thank you for your response. That is really helpful and the fact that my suspicions may be confirmed helps to explain years of thinking he was wired differently to ‘most’ people. Obviously you haven’t diagnosed him but what you say makes sense. What I haven’t mentioned is I have a wonderful 10 year old son who is very similar in some ways, especially this quick to anger. I must say his strength as a little boy is his intuitive nature being able to tune into to other people’s feelings so easily and being very sensitive. They both have a real affinity with dogs too. Perhaps this is part of it, as dogs help them to calm? Anyway, thanks for your reply it’s really appreciated.