Hey there, just wanted to pop by and say - ask your doctor for a peak flow meter (http://health.yahoo.com/media/healthwise/h9991247.jpg). (Pretending you totally don't already have one and know what it is:) It's a nifty tube with springs and slidey things on the inside, and numbers along the side. You breathe into it a certain way (a hard, fast puff) and check where the slider comes to rest. There's a chart that tells you whether your lung capacity is great, normal, a little low, or zombie.

It... can be very reassuring for asthmatics like me, or anyone who is having brochial issues or is paranoid about them. Your doc should be able to give you one either on the cheap or through the pharmacy, and then she or he can tell you how to use it to get a baseline.

Hope you and the Child are both feeling better soon. *sends healthy vibes your way*