Recurring purpura. blood work came back fine twice. some protein in urine is all. any ideas on what could be wrong because three doctors couldnt tell?

Pupura: Recurrent purpura or petcheiae, with normal cbc and platelet count, no taking of aspirin, Aleve,etc, normal coagulation studies, and no evident liver derangement is suspicious of vasculitis-an autoimmune disorder resulting in blood leaking from tiny blood vessels in the skin(capillaries). ? Kidney involvementA rheumatologist would be my choice to evaluate you. A hematologist could also be referre