 [ Symptoms ] why would bowel movements smell like moth balls  my huband has copd emphysema sleep apnea allergies and asthma his bowel movements smell like moth balls each time is there a reason for this he is on a coumadin diet [ Disease ] hi after having a quick look at the diet you can see why as they say we are what we eat and from that just what we pass but his gas must be the same do hope this helps good luck