Two years ago, I had sexual encounters with prostitutes. Over the past year, I experienced symptoms such as frequent urination, pain during urination, and testicular pain, but these symptoms are not present now. Additionally, I have had severe pimples on my forehead and lips. However, my medical tests—including an ultrasound of the stomach and scrotum, urine culture, routine urine analysis,
HIV test, and hepatitis B and C tests—all came back normal or non-reactive. Could I still have an
STD?