The same thing has been happening to me lately. I've been doing this for over 20 yrs and never once had it happen then suddenly every time I purge for the past 6 months there are always streaks of bright red blood. In those moments I am horrified and think it would serve as a wake up call to stop but then I rationalize it away saying that since its bright red= superficial tear = not serious. It is scary when it happens, though.