Thanks Olive.

I have a referral for a Paediatric Gastroenteroligist. I am going to sit on it for a while and see how he goes.
I asked my SIL who is Speech Path and explained the symptons. She said it could be a small airway.
If I go ahead, he would probably get a referral for a Barium drink investigation, my SIL explained this may not show up anything and may need to go in an have a look.

We have had one or two episodes, lots of coughing and spluttering, so I think I will ring later in the week, see how long (I am assuming a very long wait) and book him in and decided between now and the appointment.

It's such a tough one, he is a happy thriving boy otherwise.