Hyperthyroidism can cause that; but it causes multiple symptoms at a time, not just one. Anything else going on that isn't normal for you? Fast heart rate, anxiety, hand tremor, throat 'fullness', extreme appetite, weight loss?
Wow! Funny that I should find your post. I was just thinking the same thing about me. It is not unusual for me to go number 2 between 5 and 8 times a day. I do have IBS but even on a normal day like today. Normal stools. I went 5 times. I had a workup with my digestive track recently where they took stool samples and saliva and found nothing wrong. They said I had a better than usual digestive track system with all the good flora's etc. I was suprised because I have had trouble with acid reflux and diarrhea junk over the last year. Thats why they were checking. But things came back great. I just go alot because I am nervous or anxious and I head in a go. Gosh, I hope we are ok for that. It is rare for me not to go a few times a day. So don't worry. You might be like me and go alot. I would rather be that way than not go for days. That fecal matter can be toxic to you body.
user.. I'm assuming this is NOT normal for you otherwise you wouldn't be posting? Or is that every day. If it just lasts for a day or two it's probably just something you ate, maybe you were a bit constipated and didn't know and ate a bunch of fiber and now it's all catching up with you.. or there was some bad bacteria in something you ate. I wouldn't worry about it either way unless it lasts for a long period.