What's wrong with me 😭😩

9/22 I was supposed to get AF leading up to it I had my regular cramps but as it got closer to it nothing came not even spotting. I also began to have back pains, bloating,constipation, gas and some abdominal and pelvic pain. 9/27 I got a BFN but still continued to have cramps, bloating, gas, back pain and diarrhea. 10/3 I'm having bloating, some cramping (not as much), back pain, and gas. But still no Sign of AF.