Dad was diagnosed with lung cancer last Oct. He had surgery to remove half lung then chemo. He was doing well. Recent blood tests and scan to check have now indicated hot spots in lymph nodes in neck. Needs an xray to see viability of biopsy and a brain scan to see if it's moved there. I can not thu k straight and feel absolutely numb, sick want to hide away. Am I right in thinking this is now stage 3B cancer? I am terrified and checked prognosis on websites which has now shattered my foundations. Any help or advice would be welcome.