thanks.. I am not sure about sensory issues, not idea really what to even look for tbh!??

I am also finding he is so tired by dinner time, but at the moment (hopefully not for much longer) both DF and I are working f/t and we dont get home till 6pm.. so by then he is over tired, probably past hungry and just ready for bed.

I do sometimes wonder if it may have something to do with his teeth, he was a very very late getting teeth (18months) and he still only has 7 (at 25 months!).

Hmmm I think you right I think DF and I need to sit down and decide on a way forward and being consistent with it.