New here - Question on genetics

Hi everyone!
I have been fighting against auto-imune unspecified disorders for more than 20 years. Results always come weird. I am also a mother, which is why I have found out I have a severe coagulation disorder… Doctors cannot pinpoint it but always told me these kinds of coagulation issues are genetic. Recently, I have found out I have been wrong all my life about who is my father. It turns out all my life I thought I was the daughter of a Caucasian couple, but now I know my mum was unfaithful with a Black man and I am his daughter. Unfortunately, he is deceased now. Can anyone inform me where can I go for information on genetic diseases for mixed breed people, or Black people? As I am clearly one of them (and didn’t know until now, that I am 45yo…) Thank you