Non-Gallstones GB: Anyone Wonder Why It Went Bad?

So I suffer from biliary dyskinesia, which is basically gallbladder issues without stones (GBEF = 28%). The one thing I just can't stop wondering is why did it go bad? I have no family history of GB issues and I don't eat like crap.

The only thing I can think of is that I started suffering from a wide variety of gastro issues about 4 years back, but those all started on the left hand side, and about 2 years ago they cleared up and gave rise to my right-sided issues. I wonder if it was GB all along, or if the left side somehow caused the GB issues!

Anybody else ever wonder?