I'm really confused. I had a vaginal swab done in the maternity clinic at my hospital. It's come back I have a yeast infection, which I know is common and have had before. however, on the comments it says if not already done, they want a swab to test for chlamydia and gonorrhoea.. anyone know as to why they want to test for this after having a vaginal swab? at my midwife appoitment in January, she said I was clear of any stis.. So now I'm panicking.