Please choose the correct ending to complete the given sentence: Health: [header] How to diagnose gallstones [title] Be aware that gallstones are often asymptomatic. [step] Gallstones can exist without ill effects for decades. Most people experience no symptoms when they have gallstones; in fact only 5 to 10% of people develop some symptoms of gallstones.

Ending1: The symptoms are less severe, but you still may have symptoms. [substeps] If you are nervous about trying this method, talk to your doctor about how to be more aware of your symptoms. Ending2: However, symptoms can occur regularly for up to several years. [substeps] Gallstones can also occur for several reasons: decreased appetites, arthritis, and muscle weakness. Ending3: This can make it difficult to know what to look for if you suspect you may have gallstones, and further indicates the importance of consulting a doctor for official diagnosis. [substeps] Fewer than half the number of people who actually have gallstones even experience symptoms. Ending4: [substeps] Gallstones are caused by too few nutrients and too little calcium in the body. [substeps] Gallstones are often caused by insufficient nutrients and low amount of calcium in the body.

Answer format: ending1/ending2/ending3/ending4