she told me she doesn't have hcv. at least maybe she is not aware of her real status.
the hcv prevalence in our country is less than 0.5 percent. how much is the real risk?
Get tested to mind at ease.
"without me noticing that it was used by another person". Do you mean a person other than your friend? If a third person, where is your conern about your friend?
I think you are obsessing for no reason. You are acting like you know your friend has HCV. Does your friend at least have any risky behavior like IDU, etc for you to be worried like you are? If they are a friend why not ask them to get tested along with you? Best of luck