Anxiety, 3-5 second pains in stomach, fullness after eating (i eat fast), scared to death it might be stomach cancer. pains only when im anxious? help

See a psychologist: You should get evaluated. Schedule an appointment with a psychologist for an evaluation. Therapy and/or medication will help if in fact you are anxious. Make sure you talk about your symptoms and not a diagnostic label. You have listed physiological symptoms of panic/anxiety. The fear of cancer is an intrusive thought. Seek help, take care.