I received oral sex from my girlfriend who had a cold sore that has been healing (nearly healed), we didn't stop to think about this prior due to sexual excitement in the moment. I went and washed immediately with soap and water afterwards upon realizing we had made a mistake, I also brushed and used Listerine. I'm not sure if I've ever had a cold sore before. I think I've only gotten canker sores in my mouth before. We've been together 3 months already and have had plenty of intimacy, but no issues. Should I go get checked for STDs? Should I stop being intimate with my girlfriend for the time being? I'm very afraid and I think I'm making myself sick. I feel like I'm thinking myself into feeling that I'm feeling something on my privates. I never knew that cold sores we're herpes, I thought that they were normal and so did she. She also has not been with anyone sexually in 5 years and gets a PAP Smear regularly.