I would say take her in today if you could.

It has been going on for a few days, and it sounds as though she is becoming listless, based on what you wrote earlier. But she has since had a good feed, I would be keeping a close eye on her, it may be that she has just peaked her temp and is on the improve or she may have just hit a "good patch" and may struggle again...

Sorry I probably haven't been much help, take care xxoo