Hello, I m 36, diagnosed w PCOS & endemetreosis at 23, have been off hormones & metformin for 4 years, sexually active, periods have been on time for last 6 months, last time of intercourse was 2/25, period should have started 3/14, finally started on 3/21, have had nausea, heightened sense of smell, headache, breasts swollen & tender, mild lower back pain , super fatigued for weeks now. Have not taken a pregnancy test. Mood is high & low. Just PMS & hormone changes?