Your mother is a healthy person and so why should she have an MAI first of all. Howver the bronchoscopy
has come positive for her and hence she should be treated. The treatment is not worse then what your mother is going through right now in pain everyday.
I feel that a bronchoscopy be repeated and then take a call from the culture reports whether she needs treatment or not for MAI. Many times an MAI be just a contaminant in the handling and processing of the specimens.
For the pain a lung nodule can certainly cauise a swallowing difficulty and pain in the chest as it encompasses the esophagus
and constricts it but a continuous severe pain