Hatul
Contributor
The pain does not occur with any other activity. The first "attack" he had was 14 years ago and occasionally thereafter.
In the last 3 years they have become very frequent, 2 - 3 times during a week of diving at 3 dives per day.
He usually stays very horizontal during the dive. He tried the head up position because he thought he was swallowing too much air and that was causing his pain.
Try having him take a Pepcid or Zantac a couple of hours before diving or an antacid just before diving.