I took me a very long time to figure out that I was always bloated. I thought it was normal to feel like that. Here I am, 54,, and I just figured out three months ago that dairy is not my friend. Since I gave it up I am not constantly bloated, know what normal is and can always tell when a different food is a no-go because I bloat up again. A single slice of cheese makes me bloat within a short amount of time! Try ditching all forms of dairy for a few days and see what happens.
Of all the paths you take in life, make sure a few of them are dirt.