HELP!! Edit I have PCOS

Currently on day 79 of my cycle had my period for 57 days. Last month my cycle is 69 days long what's 40 days of bleeding. So with that being said I'm a 25th of September I started having very little brown spotting I brushed It Off it has been a week as of tomorrow of on and off with brown spotting and with little bit pink some times very little specs of red. I have been extremely nauseous the past two days and super tired for about a week. Please someone tell me if you have had this!