Clear tests but still experiencing symptoms

Last December I had surgery and got a yeast infection from antibiotics. Later on was diagnosed with BV. The last year has been a revolving door of treatments, but the last two swabs I’ve done have come back totally clear. I have a mucosal film around the entrance of my vagina and in the vaginal canal. I can visually see it flare up whenever I stop doing boric acid suppositories. It spreads and turns the tissue white. Some itchiness here and there but otherwise no other symptoms. No std’s or anything. I dont know what’s going on. I’ve been referred to a gynecologist and I’ve also ordered an Evvy test, so I hope I’ll get some answers soon. Could the white tissue be from ureaplasma?