In my teenage years from about 13-18 I suffered from an eating disorder. I would starve myself for extended periods of time and if I did eat it was rarely over 800 calories in one day. Occasionally I would binge massively and I would always get D which I didn't find that surprising and actually when I was in that state of mind I was actually quite pleased about because I thought it meant I wouldn't gain. I also used to take herbal laxatives sometimes which was definitely not a good idea but I was young and stupid. Looking back on it now I can't believe I actually GAVE myself D.I suffer from bad IBS-D now. I never went through the proper treatment for my eating disorder I just kind of snapped out of it and started eating everything in sight for a couple of months. And that's when the D started. Is it possible that it's this that could have caused or at least triggered my ibs? I always thought that maybe my body forgot how to digest food in that time and that it was so shocked when it started getting loads of food again it went into overdrive and has never quite adjusted.