I have had what was thought an umbilical Hernia (small) for the last 4 years, I am female and 52 years of age, until recently it has not caused too many problems, but in the last year i have noticed pain like a burning'dragging feeling and have gained about half a stone in weight, i also have palpitations and sometimes rapid heartbeat, anyway I have just undergone an ultra sound and they now say it is not a hernia but lipoma, but it is painful especially after eating, i also get bloating, and shortness of breath on occasions, should i ask for a biopsy? very worried now as it may be cancer , thank you