Hi Diane,

If your husbands pain is in a very specific spot and not spread over a general area then a simple test for your husband to do first is “Carnett’s test” or Carnett’s sign. If you Google “Carnetts test”, you’ll find plenty of links.
Here is one that might pop up.

It’s a very simple test to detect if the pain is coming from the abdominal wall (ACNES) or from something inside his abdomen instead.