Monster period

So... I’ve been pretty stressed for the past few months. Work, life, etc. so I would I have spotting and then super short periods and now my period is going on 12 days. I am assuming that because of stress it’s been short and then finally my body had enough and wants to shed its baggage. Should I be worried? I don’t have pain or anything just an abnormally long period. Which is the only reason I had concern, but I think I just need to hear that it had happened to others and nothing was wrong...