im only 12 & in health class we learned about liver disease, & we learned about some signs, i have a bit, a little yellow in the eyes, pain in the right shoulder, & alot of mood swings, alittle bit of depression, & its hard for me to keep up in gym, i also gave pain in my back, whenever i bring up my health my parents think im lying, & i know this is very serious, i do i bring it up. please help me..