You should not accept your doctor's conclusion that "nothing works", even though he/she may be right. Rather, you should seek a second opinion from a rheumatologist, because from your description, it is highly likely that you have a connective tissue disease as the cause of your non-respiratory symptoms and that your respiratory
bronchiolitisBronchiolitis interstitialInterstitial cystitis (ic)
Interstitial cystitis - resources
Interstitial nephritis lung disease (RBILD) is but one manifestation of the connective tissue disease.
Were it not for the lung disease, the remainder of your symptoms would suggest a possible chronic
infectiousInfectious endocarditis
Infectious mononucleosis
Infectious mononucleosis #3 disease, such as Lyme disease or chronic fatigue syndrome (CFS), the causes of which remain controversial.
In the majority of cases of Bronchiolitis, not associated with a specific connective tissue disease, the organ specific symptoms are limited almost exclusively to the lungs, except for generalized symptoms such as fatigue. Chest pain is not a common symptom.