I saw your question posted on Monday 30 Apr 2012 just now ( Friday, June 29 Indian Standard Time22 hours).
Though the answer is delayed, it may be useful to others.
At the onset never feel "crazy" to ask your doubts. As a mother it is your right. Child is not only yours, but future wealth of the world.
Your first aid
measures had been complete.
We will split this question into a. whether there would have been damage to the child b. prevention of such issues.
Assuming the vapours had affected your child it should have produced the following symptoms.
2. Nose block
3. Running nose
4. Continuous cough
5. Wheeze : breathlessness
6. with in first 24 hours fever
: possiblity of infection
7. Marked reduction in activitiy
8. Distured sleep
9. Not able to suck well
How to avoid this in future?
As both of us are doctors, we had time only in the night.
This sterilsation job would be a joint effort. It should be. When one starts the , the other person will also be informed. After 30 mintues we will asses and then switch off. For Indian conditions, we use to boil for 45 mts in all
This kitchen and laundry work refined me as a pediatrican.