Period Ended Abruptly??

Ellie

Normally i have terrible periods! 7-8 with heavy flow and extreme cramping and pmdd! This month my period only had 1 slight day of cramping and only lasted 3 days in total? And after it ended i had an extreme amount of clear discharge- like an EXTREME AMOUNT. Any possible clues as to what the hell is going on? A 3 day period would be great but this is so out of the ordinary for me its causing a bit of concern