 [ Symptoms ] i am ill for two years with gastro issues sweating weight loss thick phlegm [ Disease ] hi any neoplastic or a paraneoplastic lesion causing so many symptoms for 2 years should definitely be detected by an ctscan i dont think you have it if its not seen on a ct this should be more of immunity lowering generalised disease the root cause needs to be found out though get a detailed blood profile done to find out the exact diagnosis thanks