My RO said it may be my thyroid, but he was not concerned about that. He is concerned about all my other symptoms: the right arm pain, lower back pain, right ear pain, cough, occasional shortness of breath, and most of all the night sweats I have been having. I know PET scans ar enot the end all of end alls, but he is ordering another PET scan and also took some blood to do a full blood work up. He said that if the blood work ot PET scan do not show up anything that he will send me to a disease specialist to getsome more tests to find out why I am having all these issues. I am just ready for some answers. I just love when all the Drs each have a differing opinion.