The biggest concern in this situation would be gonnococcal phayngitis. This can be very serious. However it is also very treatable. I think you should definitely go in to get it checked out and be sure to tell the doctor that you've had unprotected sex (including oral). There may be some further questions about the order in which you did them (e.g.. having oral sex
after either vaginal or anal sex), which can cause very different kinds of infections, and therefore require very different antibiotics. Bottom line: Go in to get it checked. And ALWAYS use protection! I hope all ends up being well.