my ds5 has been fine on his brown inhaler since christmas, 4.5 months without a wheeze, and now tonight he's a bit wheezy. ohh. I thought he maybe had outgrown it and getting ready to go to docs to reduce meds(he was having fortnightly attacks before that). Is it hayfever triggering it do you think? His asthma started last summer, so he missed this time of wheezing.