Cin2

Hello I'm going back for a colposcopy in the week last went was 3 months ago had a biopsy cin2 was found, I thought was meant to go back in 6 months says in booklet. But they have asked 3 months for me , what will happen this time during my colposcopy can't stop worrying, keep having odd mucus bleeding , legs constantly hurt and my back. (My first smear 2017 was fine feb this year 2020 High risk HPV and abnormal cells cin2)