I slept with two guys in the same week (unprotected sex) and a guy A called me and told me he tested positive for urethritis and I should get tested. I tested positive for non-specific urethritis. I called guy B and told him to get tested. He call me the next day and told me he tested negative. Is this possible or is he lying? Guy A only had unprotected sex with me. I had unprotected sex with guy A who tested positive for urethritis and guy B who tested negative. I don't know who to trust....