headache (may be severe);drowsiness, dizziness;sleep problems (insomnia);decreased sex drive, impotence, or difficulty having an orgasm; or swollen or tender breasts (in men);nausea, vomiting, stomach pain; or diarrhea or constipation so yes those are some of the side effects your having. I have the chest pains, tender breasts and dizziness it ***** to.