The major symptom for me was gas (and associated cramping). The treatment was a few months of doxycycline, which seemed to clear it up. I wasn't formally tested, so the diagnosis was based on symptoms.

I have never been tested for it but assume with all of the sugar that I consume(d) that I have a reasonable case of it...I cut out most breads, cakes, pasta and pastries (not easy where I live...Paris) and have practically removed candy from my diet but still eat tons of fruit, drink juice and eat chocolate.

My symptoms were very bad gas and urgency as well as a very pasty mouth and loss of taste.

I took pharmacuetical grade probiotics then the grocery store kind for nearly 8 months. 

It helped. 

The pasty mouch associated with loss of taste gets worse when I up my sugar intake and gets better when I cut all sugars out. 

I have never quite gotten rid of it because I am not disiplined enough to go 3-6 months with no sugars.

The gas is pretty much under control thanks to the probiotics.

Sharon