Cannot Diagnose Breathing Issue with Smokey

[Dee & Evan]

Hi everyone.  Sorry I haven't been checking any of our messages lately. 
We are perplexed by Smokey's breathing issues.  We have had him to the 
vet 3-4 times in the past month trying to figure out what is going on.  
We did another chest x-ray.  There is no fluid around his lungs but his 
lungs still look like fluffy cotton, maybe even a little worse at his 
last visit on 09/05/06.  Our vet sent blood work out to a lab to get 
several tests ran.  The results came back today.  His RBC is at 5.92 so 
he has slight anemia.  His hematocrit is at 37%.  But everything else 
was negative.  No infection, no bacteria, no fungal infection, 
everything came out clean.  It was even negative for the hemobart 
parasite.  I plan on finishing the Doxy regiment until at least the 21st 
though.  I am just worried sick over his breathing.  Periodically he 
also has coughing fits.  I just don't know what to think.  The vet said 
the next step would be an ultrasound, especially of his heart.  I 
started him on Lysine last week.  I think he has gotten wise to it as he 
has stopped eating as much of his canned food that I put it in.  At 
least I am hoping that is the case & it is not because he doesn't want 
to eat now.  He still LOVES his chicken I feed him in the morning & 
evening.  We have a running tally of about $1,200 to $1,300 so far and I 
am running out of resourse to fund this.  Any input, suggestions, or 
encouragement would be greatly appreciated at this point.  Thanks to 
everyone.......you are a wonderful group of people.  All of your 
furbabies are in good hands. 

~Dee