You will want a PET scan, that is for soft tissue (spread to lungs, organs, etc.) and
mri to check your bones. You are way too
young not to be pro-active here- there is no such thing as too many test when it comes to metastasized cancer. You have to take care of you, and you may have to fight the insurance companies occasionally to do it. Believe me, they turn you down, call again, and again, until your tests are approved. It is your one life, they will give in, but only to the squeaky wheel.