Fit test 300 - being referred urgently and I'm terrified

Hi all, absolutely terrified.  Just did a QFit test last week and reading is 300, had one a year ago and it was 7.  i recently had my piles banded which didnt work and mentioned this to the Dr who said she would do another Q Fit.  I dont have any other symptoms and no family history but i have severe health anxiety.  I am 42 and the Dr said they would refer me urgently but i am terrified.

Just wanted to get it off my chest.