Hi there. I am hoping that someone can assist please. My last period date was the 21 August 2010. Usually my periods last about 4-5 days, this only lasted 2 days. I also experienced alot of cramping which I never usually have. The thing is that since the onset of this last period I have been feeling dizzy, I have nausea and am exhausted. I also have severe lower back pain and my tummy is swollen (I do have IBS but this is exceptionally painful and swollen) I went to the doctor and he tested for pregnancy which was negative. He seems to believe that the problem is hormonal but has also suggested tests for Insulin and Thyroid. Over the past couple of month I have also experienced rectal bleeding. I am sick and tired of always feeling sick and tired :-( does anyone know what this is?