yes when i first went clubbing and gigging i could have that ringing in my ears for a couple of days at its worst - the bad news is i don't get that anymore not even a little bit - as the clubs etc made me a little bit deaf.
the ringing is caused by the damage you have done to your ears, try to move away from the speakers a bit more next time - or better still don't stand directly in front of them (round a corner is best) so that the sound is not going straight to you