My husband has several medical problems going on. He is experiencing severe fatigue , stomach pain, back pain, , weight loss , trouble swallowing , headaches, heart racing and flip-flopping sensations. His right hand is cold. Recently he s been to a cardiologist who thought he had a heart tumor but it wasn t visible on an echocardiogram . He s currently on a monitor for a week. The heart doctor recommended that he get a cat scan and a colonoscopy ( he s 61). He also has a dark callous on his foot.