Idiopathic pulmonary fibrosis is a terrible disease/illness. It is a terminal illness, they average length of life from diagnosis to death is between 2 - 5 years. The lung tissue gradually becomes stiffer and thicker, meaning that there is great difficulty in oxygen passing through to the blood from the lungs. Oxygen is a necessity, but eventually even that is not enough. The slightest exertion causes extreme breathlessness, and that can be just standing up, taking one or two steps, or just sitting on the toilet. It is a terrible thing, and trying to keep calm and keep the panic at bay is a full time job..
I worked with a respiratory team for many years, and looked after many people with IPF.
There are some different types of pulmonary fibrosis, and some more treatable than others, but IPF is the worst type.
My brother in law was diagnosed with it at 60 yrs, and died 2 years later. There is no treatment, some drugs will help for a short time, and lung transplant is the optimal, but that wait can be terrible and futile. Palliative care with a skilled team is necessary.