Fit test result of 40 , raised crp and calproctein

Hello 

about 4 weeks ago I had five days of mucus and diarrhoea and one afternoon of bad pain ! 
I did two stool samples and blood test ! 
I’ve  been called 4 weeks later ( although I initially rang and they said it showed irritation ) … to say FIT a has come back as 40 and I have raised crp and calproctein ! 
I am panicking a lot as they are referring me for colonoscopy and cr scan in the two week referrel ! 
I have no blood , no pain , stool is normal now , no weightloss ! 
Any help would be appreciated :( 

x