Like you, I had the surgery for lung issues. I had a lung infection going into the surgery, and post-surgery received Rocephin shots to avoid putting antibiotics into my very sensitive stomach. It took quite some time to heal, and my lungs didn't clear for about 3 months or so after surgery.
I have pollen allergies and asthma, so although the surgery has improved my lungs 100%, this doesn't mean I never get a lung infection. I expect your lungs may have been compromised as mine have. My allergy/asthma doctor told me that typical people have the ability to fight potential lung infections, but I am more likely to need the help of an antibiotic.
So, the good news is that your lungs have cleared, and are in better condition than they were pre-op. The bad news is that you can still get lung infections that need treatment. Your doctors are correct about some conditions/recoveries take longer than a year. You may find that you begin to have fewer and fewer infections as your recovery progresses.
Hang in there!
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”