Period and spotting for days after

So a few days before my period I️ experienced severe cramping, lower back aches, and nausea. My period came 2 days early on Tuesday and was very light compared to my usually heavy periods. It lasted 4 days (last day had very light spotting) when normally my 5th day of my period is spotting. Starting Sunday is when this spotting in my panties about twice a day started occurring. Since my period, I️ have been SUPER drowsy and ill feeling to the point I️ have called in to work. I’ve had terrible indigestion and nausea to the point I’m waking up in the middle of the night running to toilet. I’ve had vivid dreams for the past few nights as well. I’m so confused on what’s going on with my body!!