Yes, unfortunately, a cancer recurrence is never out of the question. However, these symptoms sound more like fibromyalgia, or an after-effect of chemo and radiation, than they do cancer. Or side effects from any current drugs. How long ago did you go through all of this? Are you taking an aromatase inhibitor (e.g., Arimidex)? Are you still doing the Herceptin? What does your oncologist say? I'd hope your oncologist wouldn't let you suffer like this without helping you pin down what it is - even though it's almost certainly not cancer, it's no doubt a side effect (or lasting effect) of treatment. So if you haven't had a GOOD, long-enough appointment with your oncologist - schedule one, OK? S/he will determine what diagnostic tests you might need. Good luck - PJH