Weird symptoms

Soooo, for almost a week I’ve had serious gas pains and haven’t had a normal BM in a while. (Normal as in solid...) I’m also burping and tooting like crazy.

I also feel as if my uniform pants a little tighter than normal. My nips are sensitive and i feel like my boobs are a little bigger than normal. Last night for the first time ever my lower back was really sore and made it impossible to fall asleep. Yesterday i also has a little cramping on my my left side. I have noticed I’m feeling like i have to pee a little more than normal...

I am honestly unaware of how many DPO i am... but has anyone ever experienced these symptoms before? I personally don’t want to think I’m pregnant... but some of these symptoms are a little new to me...