I have been having testicle pain aswell as pain inside of my urethra on and off randomly throughout the day.. for about 3 weeks now... i recently have also gotten sick, dry cough & congestion, sore throat, stuffy nose, headaches & lightheaded randomly. Also had joint pain in my knee for the first time ever. I dont know if this is all connected... the only sexual activity i ever engaged in was recieving oral analingus for a couple of minutes several weeks ago. Could this be sign of HIV or an Std?