For these symptoms get trichomoniasis ruled out. The characteristic symptom of trichomoniasis infection is a heavy, frothy, yellow-green, fishy-smelling discharge from the vagina. The infection can also cause discomfort during sex, vaginal itching, pain when passing urine and occasionally stomach pains.
Diagnosis can be confirmed only after pelvic examination and swab samples of the discharge and cervix swabs.Treatment depends on the same.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
You might want to make sure that's not a std