Right firstly my period is like clock work I know the day and time I come on. However, Last month my “period” was 8 days early and lasted 8/9 days but it wasn’t like a normal period it was more brownish old blood (some people mentioned implantation bleeding possibly)

I know I still have nearly a week and a half till my next period is due but I’m constantly tired, I can’t stop weeing, heart burn, lower back pain and cramping like my period is coming (but it’s not)

Any ideas my minds everywhere