Confused about faecal results

[SuHMK]

Firstly. What a great find this forum is.

I am 28. Feel great. Eat well. Excercise. Pass normal stools for last year 🎉 So confused as to why my faecal calprotectin level is over 2000. I'm taking mezavant for my UC.

Apart from this reading I'm feeling the best I have in years.

Any ideas? Thank you