http://www.medications.com/effect/view/41899 For me, mostly, Yaz has been heaven sent. I had a horrible case of PMDD and it is much more manageable now. My only complaint is that after 15 months of being on Yaz, I have been bleeding now for 17 days with no end in sight. This bleeding started mid-pa Mon, 01 Jun 2009 16:19:22 -0400 http://www.medications.com/effect/view/41899?item=20263 I was on Yaz for only a month and a half and mid pack, I started my period again, HARDCORE. My periods usually last about 3-4 days. With Yaz, I was bleeding a lot for 2 weeks! I took them every night before bed, I woke up every night throwing up and then w http://www.medications.com/effect/view/41899?item=20263 Wed, 03 Jun 2009 11:18:35 -0400 http://www.medications.com/effect/view/41899?item=20317 I am on Yaz and I started my period like normal, but i am now on my third week of my period and it is heavier than normal! I am getting blood work done today and my doctor is switching my pill. I am just worried something more serious is happening! http://www.medications.com/effect/view/41899?item=20317