Ortho Tri-Cyclen Lo

I've been on Ortho Tri-Cyclen Lo, faithfully, for almost 3 years now and I think it caught up with me. I constantly have headaches, I feel sad, have crying spells, cry easier, moody, irritable, arguing with my family, loss of interest in things I used to love doing, loss of interest in "bed", and possibly even a small case of depression? But is it possible for all this to be caused by the pill, especially after 3 years of use?