I'm having a lot of problems. I am a 25 year old female and for the past month have been having extremely sore nipples, been constipated, nauseous when I eat, lower abdominal pain/discomfort, and increased urination. I only have a period every other month and I'm slightly over a week lat for my period. I don't suspect pregnancy because I do have PCOS that affects one ovary. I was wondering if I should be concerned about these things or could it just be an extreme case of PMS?