The gold standard for the diagnoses of Gallstones is ultra-sound. The solution is then to remove the gallbladder. This is the guidelines for health services in the USA and also the UK.
Currently in the U.S. there are approximately 30 million patients with gallstones, and about 15 million patients recovering from surgery, which is 14.3% of the total population. Many more have Gallstones but don't suffer from any pain and never go to the doctor.
Gallstones in the gallbladder are a symptom of a more complex problem in the biliary cycle (liver, bile ducts, gallbladder, intestines). Many common drugs such as amitriptyline which is often administered for fibromyalgia stalls the digestive system and results in gallstones. Also virus infections and intravenously given drug cause molecular changes to the liver, throwing the composition of bile out of balance and this results in the formation of putty bile.
I have found personally that liver-flushing made the greatest improvement to my fibromyalgia. It has removed the pain from my joints and made my muscles more flexible. It also reduced all the other problems associated with fibromyalgia.