Will my ears be ok after this gig?

It is possible to damage your hearing from loud noises but since you don't have a ringing noise I THINK that maybe you might be okay. To be sure, get checked from your doctor. If there is something wrong, they could find it now and help you out so it doesn't affect you much in the future. But if your hearin does come back tomorrow and you feel fine, then your fine, just be more careful to be around loud noises. Best of luck :)