I have IBS which stands for Irritable Bowel Syndrome.
People get them confused all the time (including me, until I was set straight rather firmly a number of years ago by someone who actually had IBD).
IBD is FAR more serious than IBS (although IBS is miserable, too - but it's not life-threatening in the same way that IBD can be).
Just wanted to set that straight. And I'm so sorry Red is going through this.