You are at little or no risk for a standard STD. There are no STDs that cause typical cold symptoms, so you can safely assume that wasn't the cause of your partner's sore throat. It is far more likely she had a standard cold virus. Second, condoms work -- any infection she was carrying would not have been transmitted through the condom.

Of course any time you're close enough to someone to have sex of any kind, you're also close enough to catch a cold, especially if your contact included any kissing. So you might expect to start having your own cold symptoms (nasal conjestion, maybe sore throat, cough, etc), but it won't be from an STD.

Your mention of NGU suggests you might be aware that on rare occasions, some cold viruses can cause NGU. Specifically, some colds are caused by adenovirus, and some types of adenovirus can transmitted to the urethra by oral sex and cause NGU. But the condom would have protected you against this. If you don't develop penile discharge with painful urination in the next week, you'll be home free.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD

Your penile "tingling" doesn't concern me. No STD causes that, but this is one of the most common symptoms reported by men with genitally focused anxiety after a sexual exposure they regret-- and whenever someone suspects his or her own symptoms have a psychological origin, usually s/he is correct.

But unfortuately, I cannot give 100% reassurance after such an exposure. You could have a urine test for gonorrhea and chlamydia, which is valid any time more than 3-4 days after exposure; and wait about 10 days since exposure while on the lookout for NGU symptoms (urethral discharge, painful urination). At that time, and assuming the urine test is negative, you could safely resume sex with your regular partner. That said, the risk of any of these is truly very low. The main thing you're likely to transmit to your partner still is a common cold, if you caught your CSW's infection.