Hello,
Thank you for your post.
Receiving unprotected oral sex involves a number of risks, including the following STDs: Chlamydia, Gonorrhoea, Non-Specific Urethritis, Herpes and Syphilis. However your symptoms are consistent with the first three infections mentioned and I would suggest that you get tested and treated accordingly. Your wife's symptoms could also be related to this and she might need to get treated also. Syphilis can be tested with a blood test after at least 4 weeks, but this is highly unlikely. Herpes is also a possibility but it is unlikely if you have not developed any symptoms and in absence of symptoms, the blood test is only reliable if you carry it out after 12 weeks of the encounter.
Best wishes,
Dr José