Hi. My husband has a lot of trouble with ear pain and equalizing while diving. He even got a couple of nosebleeds when we were diving in Hawaii a few years ago. He now refuses to go diving anymore (can't blame him) but I was hoping someone had any ideas as to what might be causing his problmes. He was not ascending or descending too quickly. He did everything by the book but was not able to go below about 20 feet. Any suggestions? Thanks