6 dpo and feel like crap

Megan • Megan💄 Ortho asst🦷 fur mom to two GSDs🐶 3 miscarriages 👼🏼 Gracie Mae🌺
Alright, I had a temp drop for a few days and today I sky rocketed... Past few days I've gotten dizzy and felt like I had to puke. My body just feels miserable. My cm increased from watery to some thick white cm. I've been feeling like I have to pee. I've been feeling like I'm on fire. Back hurts. I've been cramping a lot. I've been moody. 
Now, I know most will say I'm reading into it but I'm really not. I have a very easy period to were I cramp like the first day that I actually bleed and that's it. I still have quite a bit till my period. I am not getting sick either. I just feel off. 
I was just wondering if these are something's that are common. 
Thanks!