went to Dr yesterday for bad arthritis pain in my knee...got a steroid shot in the ass which seems to be helping the knee...also gave me indomethacin pain pills....never had any side effects to any meds in my life....but one of the ones listed for this med was ringing in the ears...only took 2 pills yesterday & woke up at 4am wih this crap...haven't taken any more but nearly 12 hours later still got it....how long does this last....