I've been bulimic/anorexic since I was 12 or 13. I've always noticed that after I purged, my hand would smell awfully unless washed with a very strong smelling soap. Also, I would use the end of a toothbrush, which could cause the bristles or handle to smell of vomit, as well.
Beat bulimia using the 3 Techniques taught in my private online program and community
Just recently I emailed my friend and said "Funny (well, not really) how many psychologists, doctors, dieticians, support groups, hospitals, and even a hypnotist, I went to over the years that couldn’t help me – and all it took in the end was a simple site like this... - Cassie (Shared with permission)