A little tmi but I need help

Sex has been messing with my PH balance horrifically and causing a gross amount of discharge. I don't have an infection of any sort. No smell or itchiness. Nothing off about the color. It's all normal, except the amount. I don't feel comfortable wearing liners all day, so here I am. I've tried probiotics, but it doesn't do much.

Has anyone else had this problem?

What did you do?