I have been looking for an answer to what my problem is and I think it might be IBS. It began about 1 month ago. After lunch and dinner I have bad lower abdominal cramps followed by diarrhea. Breakfast never causes it, no matter how big of a meal I eat. I have tried looking for one common food that has caused it, but it doesn't seem to matter what I eat or how much. It is starting to make me very tired in the evenings and it keeps me from living normally. All my life my period has caused me to have diarrhea or constipation (usually diarrhea). But now it is all the time. Sometimes my symptoms are also accompanied by a feeling like I have had too much coffee, or I'm anxious. I rarely have caffeine, so it's not that. If anyone has similar symptoms I would like to know how you handle it.Thank you, Haley