Last week I had an expedited appointment with my consultant prompted by severe mouth ulcers, continued bleeding and abdominal discomfort. As a result, I am going on to Azathioprine (125mg) & prednisolone (40mg). My blood work though showed a very low CRP (0.2) which I was expecting to be much higher. Does anyone else show symptoms but have a low CRP? How usual or unusual is that? Could it indicate that something else is going on? Crohn's was confirmed by colonoscopy earlier this year but despite that, every time I have an appointment, I still find myself worried that something else is at play.