Exactly this! my calprotectin was 448! Had loose stools etc! I've had colonoscopy, mri, biopsys and they haven't found anything! Im waiting for a pill cam now! But after a year of bad symptoms! Things are improving slowly! I am just hoping mine was just an  infection too! I have done another calprotectin test and waiting for the results and hoping the number has gone down 

Wow, you're literally the only person who I've come across that's in exactly the same boat as me. Cutting out acidic fruit (e.g. oranges), eating more fibrous fruit (e.g. pears), and taking a daily fibre supplement (psyllium husk) has helped with my symptoms. Literally a 95% improvement. I'm going for another calprotectin test in August, to see if my levels have dropped. Please let me know how you get on with the pill cam.

Wow, you're literally the only person who I've come across that's in exactly the same boat as me. Cutting out acidic fruit (e.g. oranges), eating more fibrous fruit (e.g. pears), and taking a daily fibre supplement (psyllium husk) has helped with my symptoms. Literally a 95% improvement. I'm going for another calprotectin test in August, to see if my levels have dropped. Please let me know how you get on with the pill cam.