I always have periods about every two and a half weeks, lays clots and very heavy with contraction like pain cramps. However past three months I have every two weeks with EXTREME clotting so much that I go through super plus tampons every 30 minutes or less, this time started today and have gone through tampins AND soaked pads ever 15 minutes ALL DAY feeling faint and beginning to cause panic attacks. Could I be miscarrying for the past few months and not know or what? PLEASE help! Very scared