I hear what you are saying and wonder if your health was a gradual change? my mother-in-law went from active to without breath in about a month.
About 20 years ago a chiropractor took x-rays of my chest, back etc. before beginning to manipulate my spine. There were white spots on my lungs which he explained were calcium deposits. He said that the calcium had left the bone and had deposited themselves in the blood vessels - some in the lungs. It can be a sign of osteopenia or osteoporosis.
Hope the doctor gets the results of the blood test soon. When a cause is found, it can then be treated correctly.
If your mother-in-law does not feel like eating, make sure she is drinking plenty of juices, water, soup, so that she does not become dehydrated.
Best wishes.
the hospital and her doctor told her they don't know what the spots are. they did blood tests on her and so far no results.
Before September it may be a good idea to get your mother-in-law to have a blood test for anaemia and Vitamin B group deficiency. A lot of elder folk are deficient in B12. Anaemia can cause pale skin and extreme tiredness.
It may be the case that she does have a serious problem with her lungs, but her consultant should let her or a next of kin know what it is.
If she has picked up a bug in the hospital, that will have weakened her. Tell her not to over exert herself and drink and eat healthily.
Sometimes there is no cure and although it is hard to accept, be there for her when she needs you.
Hope she does recover soon, but as she is quite mature, it takes longer for older people to recover.
best wishes.
she may have cancer.. if she does just be there every day.