3 DPO Symptoms

Okay ladies, I’m gonna come out and say it. I may be over thinking this and being crazy but I wanted to see if I’m the only ones having these symptoms. Like stated, I am 3 DPO, I have had mild bit consistent cramps since day 1, gassiness, constipation, bloating, slight dizziness and mild headaches. Upon my google search these are all signs that point to pregnancy. I’m worried these are PMS symptoms but I don’t get my period till the 15th. Can someone please either tell me I’m crazy or say they’ve felt the same things?! TIA