I am not sure what your neurologist is telling you. It could be that your lung tissue is collapsing in the chest X-rays (pneumothorax?) or is filling with fluid. In either case, this is not good and needs to be immediately addressed.
I forgot to ask about the chest x-ray. It showed flattening of the hemidiaphragms.? I have never heard of hemidiaphragms. Can you also respond to this?