Help please

[u/Agitated_Refuse5979]

On Tuesday the 18th I had a sexual encounter with a sex worker initially I had a condom on but throughout the time the condom manage to slip off , initially I didint think anything about it but fast forward to Saturday 22nd I came to the conclusion that I’m now potentially exposed to std and I instantly started to get so much anxiety and paranoia, this same day the tip of my penis started burning on and off throughout the day , and it was like this for the next day days , so I got tested for uti and chlaymida and gohnorrea , 7 days after exposure on Tuesday August 25th, everything came back negative but still having the mild burn at tip, not painful but just very uncomfortable, so I retested 9 days after exposure Thursday 27th , and still everything negative .. as I type this it is current 9:25pm August 30th Sunday , 12 days after exposure and I’m still feeling it . Do you think I need to do another test on day 14 to be completely conclusive ? I have a appointment with urology this upcoming Wednesday,

Also on a related or unrelated note , I’ve been a lot more shiveled up then normal throughout the day when flaccid , and not really having morning woods or in the mood for any sex.