I had pretty much the same. Several years (4? 5?) back already they saw & reported elevated levels of BILI in my blood test - but since I was enjoying good health, I never cared and never did the test again... until Jan this year (after several LFs, I'm flushing since around 1 year). And it showed 0,9 mg/dL total (from previous results I just remember that it was too high) which is believed to be in norm.
And yes, I've had the same concerns. After really big flushes my liver seemed to hurt a little. Just for a few days, then the pain was always gone. I read it's because rear stones(or whatever is there) still clogged in the liver are moving towards the front but I don't really know.
Of course I don't know it for sure, but guess that if you keep you GI tract clean and stay on reasonable diet (so that GB can flush its contents and overeating of protein will not burden the liver too much) - you shouldn't experience any 'inherited' or 'genetic' bad luck.
And a question, if I might. How did you get the flukes out? Did you follow any special procedure? I got mines only during my last Liver-Flush and I don't really understand how it worked. The only difference was that I fasted several days and THEN did the LF.