I've been on this pill for almost a year (Sept. 07). At first it worked great, but about 3 months into taking the pill I didn't get my period. I talked with the gyno office and did some research online, and apparently its common not to get your period at all on this pill (I still don't get it, and that's fine with me). But I also started having anxiety attacks, and every once in a while I feel lightheaded, almost like a mild vertigo affect. I thought maybe this was due to the fact that I just got married and bought a condo AND got a new job all in a few months. Now its August 08 and I have a yeast infection. I got one last month and needed two prescriptions to get rid of it, and now I have another infection less than a month later. I don't see why I'm having this so long after I started taking this pill, but I have a feeling Loestrin is a main cause of all my problems. I'm also very moody, but I have a history of mild depression, so all of this is hard to pinpoint a cause.