I'm not sure I'm much help here but I have the same thing. One doctor told me if I lose weight (I'm not - overweight at all but muscled and have a tight stomach - I'm female) that it would take the pressure off. I do notice that when the symptom of nausea hits, if I can relax my stomach muscles and keep the stomach from holding in and pushing up, the nausea is relieved. Mine is a 'sliding' hernia (most common) so when it's pushing up - which seems to be more often at some times than not - i feel icky and when I'm feeling okay, I notice there is no pressure in that area. So I'm exercising more and eating less and we'll see if it makes a difference. After about 45 we seem to gather any extra fat around the middle - bummer isn't it, but in my case I may be on to something.

i have the EXACT same thing and i havent been able to find a cure, some days are worse then others but what i find helps the 24 hour nausea is manuka honey you take a tea spoon of it and it just calms everything down, also tea and sometimes antacids but im on so many right now i dont think they are working. Im only 19 and i have to live with this forever so if anyone else has suggestions please let me know.