Thanks for the query,
Your symptoms of yellowish green vaginal discharge
suggests you are suffering from trichomoniasis
Trichomoniasis is primarily an infection of the urogenital tract and the most common site of infection is the urethra
and the vagina in women.
Get a swab test done.
Maintain personal hygiene.
Contact your doctor for dose and duration of metronidazole after swab test.
hope this helps,