So almost 3 weeks ago I hooked up with someone. They performed oral on me with a condom on but as soon as they started I stopped them as I just wasn't into it and I simply pulled my boxers up. Realizing that I still had the condom on I removed it threw it away and pulled my boxers back up. Is there a chance that because the condom with their saliva touched my underwear and now my penis touched that same spot that I got something? They said they were clean but my mind has been racing thinking that I caught something. For the past 2 weeks both sides of my neck have been feeling tight, my arms have felt like I worked out everyday, my hands feel like they are trembling and I've gotten this sharp pain in my stomach that comes and goes. Can the way I feel be due to stressing out about the whole situation or is it something else?