You do not have an STD that you acquired during your experience in late October, period.
Most CSWs do not have STDs (some do but most do not), you had a single exposure, you showered immediately after sex, and most importantly, you used a condom both for the oral and vaginal sex. Your symptoms occurred following trauma (longer than usual, "rubbed around the anus and vagina") with your wife. It is not uncommon to have red areas after sure exposure, after all, sex is about friction, right? The other symptoms you described could also well be manifestations of your anxiety. Do not worry. You do not need testing.
Good luck. EWH
never again? I think your wife may have a problem with that :)
Thanks a million... Never again for me.