From the history you give, I understand that you have been having diarrhoea (frequent stools). Gastroenterologists would have investigated you in detail and then come to the diagnosis of Irritable Bowel Syndrome. This is considered a functional gastrointestinal disorder. That means there is no inflammation or other abnormality with your intestines but they are a little overactive. Such a condition is likely to be seen if you are anxious or having stress. This is the reason, you were first asked to relax by yourself. You may try yoga or psychotherapy to help you relax and tolerate the stresses in life. An alternative way is to take medications like escitalopram (rexipra) and dothiepin (prothiaden). You may consult your psychiatrist for further dosing adjustments and see if one of these medications work.