Girls ? I went to the bathroom, and when I wiped away extra moisture …

Girls ? I went to the bathroom, and when I wiped away extra moisture after urinating with toilet paper (sorry for the details) I noticed a yellow-clear discharge — it stretched, long like that, somewhat thick and sticky. Like slime ? The doctor recommended intimacy with my husband (husband therapy). In the morning there is pain in the vagina, lower abdomen, and sometimes a pulling pain in the lower back. It's painful to walk — the vagina and lower abdomen hurt; it hurts when I'm lying down and when I have to get up from a sitting position. So... Could this be a plug? Should I pay attention to this discharge?