I have a temperature of 99.2F and I have a heavy cycle this time. My cycles are irregular, only off by a day or two with flows varying from light to moderate. This is the first in awhile that I can recall that's heavy with bad cramps. The nausea and flu-like symptoms have gradually increased in the last year compared to lower back pain. Fatigue is always present, even off my period. My period were terrible in my teens, and my mom swore up and down I had endometriosis. She still thinks I have it.