I am 53 years old over the past 2 years I have had an increase in passing smelly gas. Now it has gotten to the point that after approximately 6 pm I have massive amounts of very smelly gas that I contuniously pass. I normally after 2 large bowl movements (no pain no bleeding and normal stools) per day, one in the morning and one in the early afternoon. I have also had several colonoscipies, one this past year and everything was normal. What could this gas problem be and is their an over the counter product I can try? Oh I have tried gax X , beano, probioties, charcoal, align