I have had two breast cancer surgeries in the last month, first a lumpectomy then a mastectomy, on the same breast. I have felt increasingly flu-like each day since, with shortness of breath, body aches, and nausea (not to the point of vomiting). At my last dr. apt. (last Tuesday) I started Bactrim to treat a little bit of infection in my incision. Any thoughts as to why I am feeling flu-ish instead of increasingly better?? YYYY@YYYY