Inflamed liver question?

My sister has seen a specialist but no one can give us any answers. Liver is inflamed, no hepititis( both tests negitive) liver biopsy done but can't find anything. nothing blocking bile ducts, test for acline phospate, alt and ast levels all high. Symptoms ARE: tired shortness of breath pains on right... show more My sister has seen a specialist but no one can give us any answers. Liver is inflamed, no hepititis( both tests negitive) liver biopsy done but can't find anything. nothing blocking bile ducts, test for acline phospate, alt and ast levels all high.
Symptoms ARE:
tired
shortness of breath
pains on right abdomin
appitites increased

She is only 21 years old and not overweight by anymeans. She also rarely consumes alcohol.
any ideas?
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