Hi,
Welcome to ehealthforum,
Your symptoms (changes vaginal discharge, foul smell) are suggestive of vaginal infection. You should consider visiting your doctor/gynecologist for examination and vaginal swab/smear test to identify causative agent. Get started on treatment as indicated. If you are sexually active, get your partner also treated simultaneously to prevent re-infection. Take the complete course of treatment and avoid having intercourse while being on treatment. Drink plenty of water. Avoid vaginal douching, use of harsh soap, perfumes or deodorants in the area. Use loose cotton undergarments. Avoid tight fitting clothes. Keep the area dry and clean.
Take care.