<human>: since the morning (8:00 am & now 10:00) i have had severe lower abdominal pain, as if at the bottom of my uterus, with pain as i press on it and rub it - perhaps more on the lower left side. it is around time for mentrual cycle to start, but i have never experienced pain like this-so severe to affect walking. also have chills, body aches abd headaches....
<bot>: Hi. Thanks for your query and an elucidated history. The combination of the pain in lower abdomen, tenderness left lower abdomen, shills, body ache and headache is suggestive of some infection:Mostly PID, pelvic inflammatory disease, Salpingitis or Ovarian problem. The pain gets enhanced due to the congestion one get just before menses. I would advise you the following:Ultrasonography. Gynecologists examination and opinion. Start appropriate antibiotic cover. Bed-restI hope this answer helps you, you have not mentioned any urinary or bowel symptoms hence not suspected to have Gastroenteritis or colitis.