Hello, Some of the side effects of Levlen are the symptoms that you have mentioned like: headache, bloating, diarrhea swelling in your hands, ankles, or feet or weight change may occur. Vaginal bleeding between periods (spotting) or missed/irregular periods may occur, especially during the first few months of use. I think you should take an appointment with your doctor because of the side effects and another reason is that the Levlen doesn t work properly when you have vomiting or diarrhea so you have to take something else for birth control. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ajeet Singh, General & Family Physician