Given the data you provided (increased levels of bilirubin in the blood, nausea, loss of appetite, right abdominal pain) you might be experiencing liver issues. The gallbladder does not have to be affected every time there is a problem with the liver.
Given the fact that your mother suffered from amyloidosis, you might want to check for amyloidosis, too. Amylodisosis is a disorder in which amyloid (an abnormal protein) is deposited in different organs. The liver might also be one of the locations where depositions might be found. By depositing, the amyloid usually affects the function of the surrounding tissue. It might be hereditary, but can also be acquired.
The definitive diagnosis can be given after a biopsy is done in which a tissue sample is taken to be examined under a microscope. The cause for amyloidosis is not detected yet, which makes the treatment less effective. However, there are therapies that might help in reducing the symptoms.
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