I agree with Christine,

If you have an area that concerns you that either pops up on a CT/PET or you can see visibly, have it biopsied. Scans cost $ and are plagued by false positives. A CT/PET are going to show a multitude of things that can look like cancer so why get a PET if a CT lights up an area? Just biopsy the area and know for sure.

Minh you did bring up a topic though that I feel has been underdiscussed in my opinion and that is the pain medications. In my experience my Dr's were quick to give me a script for the meds, but did not have a plan for getting me off of them. Most of these drugs develop physical dependance and can lead to abuse...turning cancer patients into addicts. Getting off of these drugs can be a challenge (been there) and I know I had very little support doing this. One of the hardest things I had to do this past year was end the two years of opiate pain meds (fentanyl, oxy, hydro, tram) and let my body get back to "normal".

good luck,

Eric