Doubts whether the blackout was triggered by the alcohol consumption;
Dizziness, excessive sweating or drowsiness (dream-like feeling) often set in even before the loss of memory.
After the victims have come round again they can suffer from strong nausea. This is often exacerbated by many hours of vomiting, panic and anxiety attacks.
Even days afterwards, some victims still suffer from concentration disorders; their memory fails time and again, and they forget things they have just remembered.
The women and girls affected suffer from strong doubts over their feelings (especially if they do not have any physical injuries from the rape/abuse).