[ElaineM]

Wow !! Things can get pretty confusing at times.
I agree with your doc about doing one more treatment and then trying to do the same scan. Perhaps your doc can get a different radiologist and a different technician to work with you the next time you do these tests. Unfortunately the ability of the radiologists and technicians and the condition of the machines do play a part in the diagnosis and in the results. After all these machines are operated by human beings who have the same ups and downs of life that we have. Maybe the radiologist who read the films was having a stressful day. Machines have their own issues and sometimes don't work so well. Maybe your body was doing stuff they never saw before. Our bodies are individuals after all !!
In any case hang in there and keep going as you have always done. The next scan date will be here before you know it.
Take good care of yourself and enjoy life as you wait for the next scan.