if you didn’t go and get tested 2-3 months, 6 months, and 12 months after the fact, you should go get tested again. bc of window periods, it’s likely your clean test could have been a false negative. even if it’s been a long time, some std’s are asymptomatic and sit in your body for years. just in case you should get tested again, and specifically request tests for things like HPV that are not included in a standard “full” panel test
sorry not to come off as didactic, i just get worried about when i hear people talk about testing. i see a lot of young people not understand how to actually confirm negative results and it scares me