Cancer due to stress and trauma?

[stayhealthy77]

I don't know if I have cancer. I had a colonoscopy performed recently and the results came back negative - no colon cancer. However, I feel that there is something wrong with my body. I have had weight loss. The thing is I can eat. I have an appetite. I had other tests performed. An A1C test for diabetes, I had a CT scan performed on my brain for tumors, Alzheimer's Disease, etc, etc I had a ultrasound done and they found two small cysts on my back which was nonmalignant, I had my bladder scanned and two tests taken for a bladder, kidney, UTI. All of the tests came back negative. Nothing. I don't smoke cigarettes, I don't smoke marijuana, I don't engage in illegal street drugs and I don't drink alcohol. There is no history of cancer in my family. The only thing that has taken place in my life is a great deal of stress and trauma  experienced over the past recent number of years. Can enough stress and trauma that a person experiences lead to cancer?