Can anyone help me I've been suffering with severe ibs for 4 years I started on 4x10mg 40mg of amitriptyline and it was perfect!!! Then recently my doctor stopped then to put me on sertraline which did not help atal! I then went back onto amitriptyline 2x25mg 50mg for just over a week now but I'm still suffering... Do I need to just wait for it to kick back in or is it the actual dosage that's the problem and I should just go back to the 4x10mg