x-ray shows possible signs of lung cancer- breast cancer recurrence. I was diagnosed with bc in 2-'07. I had a mastectomy..left breast. I was HER2+. My treatment was 4 mos of chemo and 1 yr of Herceptin. The margins were clear and no lymph node activity. Doc gave me 85-90% prognosis. He's been doing blood work every 3 mos. cbc and chem panel. Never gave me the ca-125 test and did an mri on my right breast. I had the tissue expanders placed in Jan. '09. I had those removed and replaced 3 wks. ago. I was not feeling good last week. I was having a lot of pain inhaling, as if I had been running a marathon in really bad air conditions. Headache and fatigue as well. Went to urgent care Sat. they gave me a breathing treatment, and inhaler, then an x-ray before I left. My primary care doc. called in in Mon. for an appt. He told me I might have lung cancer. I asked how did he know for sure. He showed me the white spots. He said they would most likely do an pet/ct scan and possible biopsy. I am scared to death, believing that a lung cancer diagnosis pretty much means death. My doctor said not necessarily. His mother in law lived 16 yrs after diagnosis. Should I insist on a pet/ct scan? Help!!!!