Questions

Hey ladies I have some questions. For the past like week and half. I have been very tired with a slight head ache. (This might be tmi) I have had so much discharge it isn’t funny. I have been nauseated everyday around the same time. My period is 3 days late. I took 3 pregnancy tests and they were all negative. What could be going on? I have pcos so my period is never on time. But if just been feeling off. Any advice or recommendations on what today would be highly appreciated ❤️ thank you :)