SO CONFUSED!!!

Ok so I am 11 DPO, this morning I was constipated and now I have bad diarrhea. I also started getting lower back pains, they come and go but when they come they’re really bad. My breast are also very sensitive, and I feel very nausea. Almost all foods (and girl let me tell you i LOVE food) smell extremely bad. Are these maybe early pregnancy symptoms or am I just straight up sick? Need some advice. Please no rude comments.