Your GP and OS didn't choose very convenient times to go on vacation, did they! Remember that it takes longer to get the relief you may need when your chasing the pain. Hopefully today you can get caught up and they start working better for you. Remember that Percocet has the Tylenol built in, so you're not really taking more medicine than before, it's just split into more pills. Although I do not know how hydromorphone compares with the oxycodone. Do you have a muscle relaxer in that mix anywhere? It may help.
Good luck at your appointment today, be honest, and don't let the relief that some people feel just by being in the office let you downplay your pain.