I have querried several sources about your situation. These include DAN, several prominant physicians who are also divers, and an E,N,T who also is a diver.
Perhaps I can find an answer for you. However, since it has been some time since the occurance, and since ( I assume,) there are no other ill-effects experienced, there is "apparently" no immediate reason for concern.
If you are experiencing any other ill-effects or if you are still concerned, then I recommend contacting DAN or your local Ear, Nose. & Throat (ENT) specialist for referal.
I hope that everything works out well for you.
Regards,\\
Seawolf sends/