My father, who is 88, has a kidney stone. His doctor doesn t want to do anything invasive, so he was given pain meds and sent home to pass the stone on his own. It has been a week and nothing has happened, except he is still experiencing lots of pain. He also is having problems with his blood pressure dropping, and sometimes passes out. This has happened in the past. I m wondering if #1. will the stone pass on its own? and #2. could the pain meds be causing the BP to drop?