Well DS behaviour has improved slightly.
I'm not sure if its to do with me putting him back on his Movicol for his bowels or not but since hes been back on it Im monitoring his behaviour very closely and asked school to do the same.
With DS only saying a handful of words which believe me is great that he does, he does not yet have the ability to tell me if anywhere hurts which I'm hoping in time he will be able to so for the time being its guess work and process of elimination.
Today, I made DS a 'mini laundrette' he is thrilled with it!
I could see DS was enjoying this so I brought in another character with some washing who again he took the washing from (a clean dishcloth) and popped it into another one of the machines. I then slowly moved away to watch how DS played, he was using lots of language which is fantastic - I can see this game going on for hours!