Hi, I am looking for advice. In Dec 2014 I felt so tired I went to my gp. I discovered that I had lost weight. In fact I had lost muscle and gained some fat. I did a bit of research and found that small cell lung cancer can have some strange symptoms. My fatigue continued and in Oct 2016 I managed to get a PET/CT. This scan never picked anything up that worried my doctor. The question is, do now forget about lung cancer or should I still pursue further tests, maybe another scan in 6 months? I still feel exhausted and the loss of muscle means what muscle I have is always a bit sore as if I have worked out too much in the gym. Thank you for any help. Steve.