The following list covers some of the more common causes of stomach and intestinal symptoms and problems. You can read about each disorder to see if its symptoms sound like what you are experiencing. If it does, you can read on to see what you may be facing in terms of diagnostic testing and treatment.
Goliath was either 6 cubits and a span (a little less than 3 meters or 9'6) or 4 cubits and a span (2.1 meters or 6'9). When calculating weight (for muscular or stocky people) you take their height in feet and cube it, which would put Goliath's weight at around either 860 lbs (taller height) or 310 lbs (shorter height).
Various Bible commentaries place the length of a cubit anywhere from 17 inches (43.2 centimeters) to 21 inches (53.3 centimeters). The length of a span is highly likely around 9 inches (22.9 centimeters). Conservatively, Goliath was 9 feet 3 inches tall or 2.82 meters and likely was a bit bigger! Compare this to the average height of a U.S. male (2003 to 2006 data) of 5 feet 10 inches (1.8 meters). Regarding the size and weight of Goliath's armor the Bible says his battle coat weighed 5,000 shekels of bronze.