When I start with mental illness in my family, I start with my father who had issues with codependency and addiction. Then there's my mother who moved 50 times in 67 years in search of perfection, with years of depression and paranoia. My sister who died of accidental drug overdose a year ago showed very strong characteristics of bipolar disorder, my younger sister, probably the most normal one in the family, is autistic, mentally challenged with Turner's syndrome but no sign of mental illness, just characteristics of being an adult child in our family of dysfunction.
For myself I adopted my parents dysfunction and character defects and an adult child as a result. Depression, low self-esteem, paranoia, anxiety/ panic disorder with severe codependency. Only official diagnosis I have received have been for panic disorder and gender dysphoria.