NO RISK. Go enjoy life.
If you find yourself obsessing over things like this then seek mental help for this disorder.
best of luck
How about i use the same shirt to wipe out some dirt in my nose..if the blood shirt goes to my nose. The blood is in my shirt and i think it is not be transfer by shirt going inside the nose.
Do i have a risk?
There is no risk.
You say you used "cotton buds" to check if your mouth was bleeding and it wasn't. So even if (a big IF) the blood on your shirt happened to be infected with HCV, you had no open cut/active bleeding in your mouth in which to receive the infected blood. HCV is passed blood to blood.