I have been experiencing severe stomach pain, constipation, stomach swelling,fatigue, weight loss, and loss of appetite and lower back pain and just start my period 15 days early. Also having severe headaches only on the left side and they are daily. I had a tubal ligation November 2011. I do have lupus and hemophilia. I have also been treated for cervical cancer but I ve never had symptoms like though, also I have never had a STD. In April my period started 8 days early, May it was normal and now its 15 days early.