My name is David Langston. I am 28 years old, 5' 11", 172 lbs. I had a vasectomy in April, but no other surgeries. I do not smoke, do drugs, or drink on a regular basis. I do not have a history of high blood pressure or cholesterol. Five days ago I was doing some heavy yard work, and I felt a sharp pain in my abdomen. The nest morning, I noticed a small lump about the diameter of a dime under the skin just below my naval, though not visable. I contacted my doctor who was not sure what it was, but he suggested I may have an umbilical hernia. I have had minor gas pains and I need to use the restroom three times a day - more often than normal. I am not in pain, though I do feel pressure when sitting upright, and when I massage the area, it feels as though I am massaging my intestines. Does this sound like an umbilical hernia, or are there other reasons for my discomfort?