Subject: How many nerves are involved in smelling and what does each nerve smell?

Last April I had the flu and lost my sense of smell, or rather lost my 
sense of smell of *anything pleasant smelling*.  Six months later it's not 
returned and my doctor says I suffered nerve damage during the flu and will 
never smell those smells again because nerve damage is irreversable. What's 
left that I *do* smell, are some disgusting chemicals, which seem to exude 
from organic materials such as my dog's bad breath, feces, garbage, dirty 
laundry, car exhaust, strangely enough - Chinese food and hotdogs.  My 
doctor says that one nerve has been left undamaged; that nerve which 
smells acetone, amonia, and several other chemicals.  All I smell is one 
totally disgusting scent wafting off of nearly everything organic and a one 
non-organic item, car emmisions. What chemicals am I smelling off of 
everything?

Re: How many nerves are involved in smelling and what does each nerve smell?