http://www.medications.com/effect/view/33152 I am so glad I found this site!!! I am 37 and I have had my tubes tied but I started taking YAZ to lessen the cramps and help with menstrual flow. What a bad choice!! I have had headaches for the past 4 days and I have only taken them for 8 days!!I am sick Fri, 08 Aug 2008 20:04:50 -0400 http://www.medications.com/effect/view/33152?item=10899 I have been on Yaz for 2 years and have had no problems - until recently. I have had cramping which has gotton worse every month for weeks at a time, and have had very heavy bleeding for a day or two with a lot of clotting. My doctor told me she has seen http://www.medications.com/effect/view/33152?item=10899