@Chris Goodman, I occasionally have to take slow release Ibuprofen (Brufen Retard) for my arthritis flares - 1600 mg per day, and have hit 2400 mg at times (max dose the doctor allowed). My tinnitus always increases when I take it, but it always returns to baseline when I stop. All NSAIDs will do that - it's the reason I don't take Diclofenac... now
that makes my tinnitus go properly crazy.
If there was noise at the wedding party - music, lots of conversation etc. then you could just be having a regular, temporary tinnitus spike from that. That's where I'd put my money anyway. Not sure you need to be taking Prednisone for an Ibuprofen spike though... I wouldn't anyway.