My son is 7 years old. He has in the past suffered from viral asthma but has recently come off of Montelukast as he hasn t suffered for a year. He has a cold at the moment and has had some sickness and diarrhea with it. He has a slight temperature tonight and is breathing in, buy on breathing out he is making slight moaning noises. Is this a normal thing due to his slight temperature or should I be worried??