I have very sore breasts/nipples. That was the very first thing I noticed because that's not normally one of my period symptoms. I feel nauseous off and on. I have clear and very wet CM. Like to the point where I have to change my underwear when I get home because my underwear is so wet. I've had a headache all week. And the weirdest thing and idk if it's even a symptom or not but my lower back and legs feel so so so sore...I've taken a bunch of test all ready and they all come back negative. But I feel so different. Any feedback would help me.