Hypersensitivity pneumonitis

Hypersensitivity pneumonitis is a fancy way of saying that your lungs are sensitive to things that you breathe in. Just like how some people are allergic to cats or pollen, some people's lungs can be allergic to certain things in the air.

When you breathe in these things, like mold, dust, or even bird droppings, your body thinks they are dangerous and starts to fight them off. This can cause inflammation and damage to your lungs, which can make it hard to breathe.

Think of it like your body's security system getting a little too overprotective. Instead of just ignoring harmless things like dust, it tries to fight them off like they are dangerous intruders.

The good news is that if you stay away from the things that your lungs are sensitive to, they'll start to heal and you'll feel better. Your doctor can help you figure out what things to avoid and may also give you medicine to help reduce inflammation in your lungs.