Hello doctor I have been suffering from ocd hiv phobia since one year and its has been my worst days of life and my latest concern is that one week ago I jus cut my index finger very little cut about 4mm and jus little amont of blood came out and about 5 min I gave money to my plumber from that finger cut and after that I thought maybe his he has cuts in his hand and his cut touch my cut is that is risk for hiv concern should I need test Please help.