Hi. I am 23 and have had two children. I got my period on July 3rd (it was early and I was on birth control) I think the reason it started so early was due to stress. But, I got my period again on the 25th and it was a lot lighter than normal. It lasted a week as usual. But ever since it ended I have had extreme bloating, headaches, cramping, and back pain that goes back and forth from my hips, to my lower back, and then up my back (feels somewhat like back labor.) I took a pregnancy test last Saturday and it was negative. I have no been taking my birth control since the last period because it needs to be refilled. I have also been extremely tired as well. I m very concerned as I don t have insurance at the moment. What could be wrong? TIA.