I recently tested negative for herpes but like a day before the test i got this small bump on my lip line. it tingled before appearing, but now it has been on my lip for 3 days, what could have caused this? it doesnt hurt and is not scabbed yet.?

What test was done? You could have recently acquired HSV 1 infection. More than half the adults have been infected with HSV 1 and the virus remains in the body or the rest of person's life. Sometimes if causes cold sores. Get HPV vaccine. Wish you good health! Safe sex: https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines