i started my period well, two days after it was due so not too late, however, it was my heaviest,longest and most painful period. i experienced many symptoms i havent before from a period, i ended the period 6days later. but i started a very light one (which i still needed to use tampons for) which lasted about 4days it has now been around 8 days since the light one yet i am concerned since i have been spotting quite heavily and each time i do ,i  insert a tampon and my discharge has not been what its normaly like its been brown and liquidy. i know that spotting and irregular periods are normal but i have had both before and not like this.