Suggest Remedy For Vaginal Discharge After Gastric Bypass Surgery

I had a gastric bypass surgery 4 months ago. I have lost about 75 pounds. I have been having sticky vaginal discharge. It gets on my underwear and leaves a greenish yellow stain. It doesn't have any foul odor. I am 55 years old and had a hysterectomy 5 years ago. I still have my cervix. Can you tell me if this is something I should be concerned about?