I had three GB attacks that produced vomiting, digestive distress, bloating, severe cramping and NO PAIN in GB area! Instead I had constant pain in my left side which neither the general practitioner nor surgeon could explain (surgeon said it would "go away" after having my GB removed, ha). My GP couldn't believe my GB area wasn't tender. After I started a milk thistle herb combo and did two flushes the pain went away. I wonder now if perhaps I passed a stone and it lodged there until the flush took it out. It makes sense since the pain started after the first attack.
Even if I didn't have any more stones to get out (which I know I do) I feel so my better after a flush that I will probably continue them periodically even after I do get out that calcified stubborn fellow (I'm currently taking Gold Coin Grass to dissolve it).
Good luck. Just keep reading and taking action to improve your health.