Dear zozthjealien; It is difficult to find one explanation for the vaginal discharge and the rest of your symptoms. Vaginal discharge can be normal even if heavy enough to flow out of you. The only physiologic discharge occurs at mid-cycle,starting about 4-5 days before ovulation and stopping 24 hours after ovulation. It is clear, slippery,tensile and non-irritating or odorous. A thick, white ,creamy or odorous discharge would suggest an infection;yeast,if itchy, bacterial, if not. You didn`t mention any possibility of being pregnant. If your period is irregular or late, consider a pregnancy test to be safe. The other complaint's sound more like a virus than anything hormonal. See if the headaches respond to an adequate amount of Motrin or Aleve,etc., that is, 3 tablets every 4-6hours. It is likely to be better than acetaminophen .
If this persists, see your GP. Good luck