Two days ago I was experiencing period cramps so I took two ibuprofens (extra strength) and immediately the pain subsided. I went to sleep and yesterday I woke up with a major headache mostly in the left area of my head. I took a daytime Tylenol during the late afternoon when the pain was much too unbearable and waited. The Tylenol didn t do much and i fell asleep around 7pm. In the early morning while still half asleep I became aware of a dull pain in my lower back and when I woke up around 9 am this morning the pain was much worse and it made it hard for me to stand straight. A few hours later while going to the bathroom I discovered that my stool was a greasy yellow diarrhea that was especially foul smelling.