I had my menstrual period from August 28-August 31. It was the best period yet it was medium to light flow and no pain! I completed my menstrual on the August 31 and had no discharge. Between the 31st and now I have been having an upset stomach, nausea, loss of appetite and headache however today Sept 2 I started having a light brown odorless discharge and was wondering what could this be and should I test?