As your partner has not been treated for chlamydia infection so it can be possible that you re-infect from her.
Your symptoms are suggesting proctitis.
Chlamydia can infect the rectum either directly (through receptive anal sex), or possibly via spread from the cervix and vagina in a woman with cervical chlamydial infection.
While these infections are often asymptomatic, they can cause symptoms of proctitis ( rectal pain, discharge, and/or bleeding).
Other causes of foul anal discharge may include anal abscess,fistula.
You can do warm sitz bath.
Also take citrucel.
You can start a probiotic.
And see your doctor for a clinical exam.
Feel free for further queries. It's good to discuss rather than quit.
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