I have a history of IBS and have been dealing with abdominal pain on and off for years... I have had my appendix and gallbladder out. My abdominal pain subsided for a while and then since september Ive be bouts with it.  Just recently; I havent been able to go to the bathroom since Monday, my stomach seems very bloated and I am having abdominal pain, not like my usual pain it just comes and goes all day...what could this be?
For us to say this as a IBS i.e. Irritable Bowel Syn Chat Doctor. I would advise the following investigations and treatment in a such a case