Hi
Welcome to the MedHelp forum!
In all probability this pain is due to costochondritis and applying a local analgesic and taking an anti inflammatory will help. However, please consult your doctor once considering your history. Even though chances of spread of cancer to bone are minimal, it should be ruled out. Take care!
I have experienced night sweats on occasion...not often...but do feel like I'm running a low-grade fever alot of the time.
I assume its not something serious. But if you are experiencing weight loss, night sweats or fever, you should get yourself checked. Take care.