Thank you for your query.
from this early age is rare but not unheard of.
Has a chest x ray
been taken of the child?
Wheezing can be due to viral infection.
Whistling sound are also produced by a partial blocked nose.use nasal drops before feeds and going to sleep.
Hope this answers your query.
If you have any other queries kindly direct them to me.
Wishing a speedy recovery.
Have a nice day.