Yes most, if not all, do. My son has had bloating and abdominal pain (sensitive to the touch) since childhood, or maybe even earlier. He could not tolerate wearing even his underware in the stomach or intestinal area because it was too sensitive.
Amazingly, it went away for the 1st time at the age of 22 when he was able to control his odor with diet and supplements. Therefore, we strongly believe that odor-producing toxins and gut dysbiosis, which may very well include constipation, are very much correlated.
Another very much noted symptom was a 'hangoverish' fatigue feeling that began at the age of 14 when his odor became severe, and lasted through the whole 8 year episode of the intense odor, until he controlled it at the age of 22. His energy level is now better than ever in his entire life.
I believe that this is true not only of people diagnosed with TMAU, but also with possible undiagnosed bloodborne Body Odor .