I suffer from both IBS and anxiety & depression. I found that my IBS symptoms were greatly reduced when I started taking an anti-depressant. I take Paxil now, but have tried many others. Zoloft was the worst for me because it gave me so many digestive problems; with IBS, you don't need any more of that! Anyway, I wasn't sure if you were taking anything for anxiety. If not, it may help you all the way around.
Diagnosed with: seizure disorder in 1962; seizure-free since 1969, anorexia from 1968-1969; IBS-D in 1996, Mild depression, anxiety, & OCD in 2000, (probably had since childhood); PMDD in 2001, Dysfunctional tear syndrome in 2009; Meds: Phenobarbitol, Paxil, Allegra; Supplements: Citrucel tablets; many vitamins, minerals & herbs - too many to list here