I would wait for a good long time before sending off your system. Back in the day I was messing around with the youngsters and got slapped right upside my head and like you, I thought my eardrum popped. Couldn't hear straight for the longest time and like you, the tinnitus was bad. Muffled sound and with my balance off a bit, I thought I was a goner.
Time did heal everything and it didn't take that long, relatively speaking.
All the best,
Nonoise