Daily shedding of bloody intestinal lining for weeks…what’s wrong???

[Tristeli]

I’m frustrated. We’ve been in lockdown for winter storm heather and then indigo with arctic plunges. I thought the pair was doing better, some shedding but nothing crazy or scary looking. They run around acting like crazy birds eating drinking playing. The male loves to crow at the weather lady on tv.
The pics are from the female this evening. I’ve been checking fecals myself weekly since the vet found nothing and never see anything more than what’s pictured. Is it anything? Should I just proceed with panacur wormer or maybe the metronidazole?