Hello I want to know the most common cause of fluctuating prolactin level..since a year my prolactin levels are fluctuating last year it was 70 thn after medication became normal thn after 6 mnths it was 50 thn again I took cabergolin it was normal now after 7 mnths again it has come to 80.. what may be the cause? Yes I took a lot of stress this year still plz enlighten me..I am sexually inactive