We don't know how long of a period between her complaining in 22 and the beginning of 24, however, we do know that she was wandering aimlessly for 7 days before Section 2 found her in the tub with the red streaks:
ep24' plat subs wrote:Misato:
I see.
It isn't like Division 2 to take seven days to find her
on top of losing her in the first place.
So yes, highly unlikely that it was her period, more likely that the base of the tub was not flat at all but bumpy (fanwank) if those streaks are from blood.
So nobody has anything to say about the different shades of brown in the original picture? Note that there are 3 shades, the base of the tub, the shadow, and something else that seems to go around the base of the tub. We know the third is not a shadow, because you can see the shadow along the right and this color runs UNDER Asuka's feet whereas a shadow would contour over them. Could this shade be rust?