My period is due in a couple of days, but I've been feeling like poop since Saturday night. I'm so…

My period is due in a couple of days, but I've been feeling like poop since Saturday night. I'm so sleepy... My muscles ache, cramps and severe back pain. I don't think I'm pregnant because these symptoms are nothing like when I was pregnant, and more like Mother Nature is near, but to be honest I NEVER felt like this before giving birth. It seems like now when my period is near my body just starts to give out 😭