Really Bad Smelling comes from
An imbalance of intestinal bacteria or eating too much animal protein, which can putrefy in your digestive tract.
While your digestive cells are absorbing sugars, starches, fats, vitamins, minerals, and other nutrients, waste products continue traveling down the line. In the colon, all the leftovers are combined, packed together, and partially dehydrated. What remains - our feces - consist of water, indigestible fiber, undigested food (such as corn and small seeds), sloughed-off dead cells, living and dead bacteria, intestinal secretions, and bile. (The worn-out red blood cells in bile give excrement its distinctive brown color.)
If all goes as it should, you'll end up with a healthy bowel movement. Although digestive idiosyncrasies, variations in intestinal bacteria, and other variables can produce different standards for a healthy stool, in general it should be brown to light brown; formed but not hard; cylindrical, not flattened; fairly bulky and full-bodied, not compacted; somewhat textured but not too messy; and very easy to pass. And it shouldn't smell - much. You're passing methane and bacterial, degraded foodstuffs, so there's always going to be an odor, but it shouldn't be a very strong, pungent odor.
There's no generally accepted clinical definition for frequent bowel movements. Bowel habits vary widely among healthy people. Population studies indicate that most people have more than three bowel movements a week. Generally speaking, however, normal is what's normal for you.
Frequency of bowel movements also varies for individuals over time. You could have one bowel movement a day for years, and then begin to have two or three for no obvious reason. If your bowel movements increase in frequency but not in any other way — no loose, watery stools and abdominal cramping (diarrhea) or bloody stool — the change is probably not a sign of illness.
I hope this helps. I can site the info if you wish. most this came from my personal nutritionist, and doctor, we had many interesting talks lol.