So we went off to our normal GP today who was very sensible.
He said asthma was very hard to diagnose in under 3's, but common sense says after a number of hospital visits to start some preventative treatment. DD now has an asthma action plan: flixotide Jnr to be started at first sign of a cold & continued until symptom free (2-3 weeks), redipred to be given if needed, plus ventolin as needed. See Dr/hospital asap if needing ventolin more than 3hourly.
He wants to review her if/when we need to start the flixotide & it may need to be used every day through winter depending on how she goes with viruses/exacerbations.
We also have a referral to the Paed.
I'm happy with this plan at the moment. Will keep in mind about the respiratory specialist if this plan doesn't work.
Thank you for your advice and stories!