opinions please

was asked today by my health visitor if i minded wether or not my son was labelled with anything !i did not know what to say as he has  symptoms of both autism and aspergers he has been put on high priority waiting list for occupational therapy as he self harms and has sensory issues as well as delayed speach he is 3 and 1/2  yrs old if he does have any of these conditions surely its better to have the diagnosis then you can explain his behaviours to people who give you funny looks when your out and about if i have had a bad bus journey home with him i cry once im behind closed doors