2 weeks ago I started getting a distended abdonmen,noticed a large hard lump all across the top of my belly button (about softball size). I look about 5 months pregnant (im not pregnant). ive had severe bowel changes, abdominal pain on right & left side, nausea, vomiting, yellow bile diharreah with black specks. Dr sending me for ct. Could a hernia be that large? Muscle issues from abdominal surgeries? Went ER, did xray only. Said it showed no bowel obstruction and see my dr for hernia?