Advice please. Im aged 52 and was referred by my gp for 2 week referral to colorectal 2 months ago. I was suffering from constipation and years of suffering from IBS like symptoms. I've had no previous investigations. 

So far I received a letter from the consultant saying they have discussed without seeing me and decided to send me for a CT scan of abdomen and pelvis. I had the ct scan and 2 weeks later I've had a phone call from MRI saying the consultant has requested an MRI of my pancreas and I don't know why. I was given a very quick appointment within days and I'm going tomorrow.

Should I be worried that so quickly after my ct scan they have requested an mri scan of my pancreas? Also I haven't had any other investigations such stool samples or colonoscopy/ sigmoidoscopy. Is this usual practice to go straight for ct scan followed by MRI? Sorry but really worried.